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51101050253 = 115638251421
BaseRepresentation
bin101111100101110111…
…000010010110001101
311212220022122022121212
4233211313002112031
51314123332102003
635250412504205
73456221521541
oct574567022615
9155808568555
1051101050253
111a743235440
129aa177b065
134a84bca756
14268aa63a21
1514e1386dd8
hexbe5dc258d

51101050253 has 8 divisors (see below), whose sum is σ = 55845624096. Its totient is φ = 46372980400.

The previous prime is 51101050241. The next prime is 51101050267. The reversal of 51101050253 is 35205010115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51101050253 - 214 = 51101033869 is a prime.

It is a super-2 number, since 2×511010502532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101050853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4119518 + ... + 4131903.

It is an arithmetic number, because the mean of its divisors is an integer number (6980703012).

Almost surely, 251101050253 is an apocalyptic number.

It is an amenable number.

51101050253 is a deficient number, since it is larger than the sum of its proper divisors (4744573843).

51101050253 is a wasteful number, since it uses less digits than its factorization.

51101050253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251995.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 51101050253 its reverse (35205010115), we get a palindrome (86306060368).

The spelling of 51101050253 in words is "fifty-one billion, one hundred one million, fifty thousand, two hundred fifty-three".

Divisors: 1 11 563 6193 8251421 90765631 4645550023 51101050253