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51097253795 = 571459921537
BaseRepresentation
bin101111100101101000…
…100011011110100011
311212220001111102212022
4233211220203132203
51314121344110140
635250155252055
73456144330260
oct574550433643
9155801442768
1051097253795
111a741082075
129aa044a02b
134a8419b723
14268a356267
1514e0d870b5
hexbe5a237a3

51097253795 has 8 divisors (see below), whose sum is σ = 70076233824. Its totient is φ = 35038116864.

The previous prime is 51097253747. The next prime is 51097253797. The reversal of 51097253795 is 59735279015.

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 51097253795 - 212 = 51097249699 is a prime.

It is a super-2 number, since 2×510972537952 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51097253797) 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, 729960734 + ... + 729960803.

It is an arithmetic number, because the mean of its divisors is an integer number (8759529228).

Almost surely, 251097253795 is an apocalyptic number.

51097253795 is a deficient number, since it is larger than the sum of its proper divisors (18978980029).

51097253795 is a wasteful number, since it uses less digits than its factorization.

51097253795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459921549.

The product of its (nonzero) digits is 2976750, while the sum is 53.

The spelling of 51097253795 in words is "fifty-one billion, ninety-seven million, two hundred fifty-three thousand, seven hundred ninety-five".

Divisors: 1 5 7 35 1459921537 7299607685 10219450759 51097253795