65731402725 has 48 divisors (see below), whose sum is σ = 114461102592. Its totient is φ = 33219060160.

The previous prime is 65731402691. The next prime is 65731402769. The reversal of 65731402725 is 52720413756.

It is not a de Polignac number, because 65731402725 - 2⁶ = 65731402661 is a prime.

It is a super-2 number, since 2×65731402725² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6514 + ... + 362636.

It is an arithmetic number, because the mean of its divisors is an integer number (2384606304).

Almost surely, 2^65731402725 is an apocalyptic number.

It is an amenable number.

65731402725 is a deficient number, since it is larger than the sum of its proper divisors (48729699867).

65731402725 is a wasteful number, since it uses less digits than its factorization.

65731402725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356266 (or 356261 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 65731402725 in words is "sixty-five billion, seven hundred thirty-one million, four hundred two thousand, seven hundred twenty-five".