465640226525 has 6 divisors (see below), whose sum is σ = 577393880922. Its totient is φ = 372512181200.

The previous prime is 465640226507. The next prime is 465640226533. The reversal of 465640226525 is 525622046564.

It can be written as a sum of positive squares in 3 ways, for example, as 98856163396 + 366784063129 = 314414^2 + 605627^2 .

It is not a de Polignac number, because 465640226525 - 2⁸ = 465640226269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 465640226525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9312804506 + ... + 9312804555.

It is an arithmetic number, because the mean of its divisors is an integer number (96232313487).

Almost surely, 2^465640226525 is an apocalyptic number.

It is an amenable number.

465640226525 is a deficient number, since it is larger than the sum of its proper divisors (111753654397).

465640226525 is a wasteful number, since it uses less digits than its factorization.

465640226525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625609071 (or 18625609066 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 465640226525 in words is "four hundred sixty-five billion, six hundred forty million, two hundred twenty-six thousand, five hundred twenty-five".