Search a number
-
+
51132554025 = 3527130374747
BaseRepresentation
bin101111100111101111…
…001101101100101001
311212222111220212200020
4233213233031230221
51314204413212100
635253500031053
73460053352350
oct574757155451
9155874825606
1051132554025
111a759aa2713
129ab0232489
134a8b5ab037
142690d04997
1514e400b5a0
hexbe7bcdb29

51132554025 has 48 divisors (see below), whose sum is σ = 96691620864. Its totient is φ = 23356630080.

The previous prime is 51132554021. The next prime is 51132554129. The reversal of 51132554025 is 52045523115.

It is not a de Polignac number, because 51132554025 - 22 = 51132554021 is a prime.

It is a super-2 number, since 2×511325540252 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132554021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 646702 + ... + 721448.

It is an arithmetic number, because the mean of its divisors is an integer number (2014408768).

Almost surely, 251132554025 is an apocalyptic number.

It is an amenable number.

51132554025 is a deficient number, since it is larger than the sum of its proper divisors (45559066839).

51132554025 is a wasteful number, since it uses less digits than its factorization.

51132554025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76070 (or 76065 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 51132554025 in words is "fifty-one billion, one hundred thirty-two million, five hundred fifty-four thousand, twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 1303 3909 6515 9121 19545 27363 32575 45605 74747 97725 136815 224241 228025 373735 523229 684075 1121205 1569687 1868675 2616145 5606025 7848435 13080725 39242175 97395341 292186023 486976705 681767387 1460930115 2045302161 2434883525 3408836935 7304650575 10226510805 17044184675 51132554025