409656044525 has 48 divisors (see below), whose sum is σ = 625307727744. Its totient is φ = 259253326080.

The previous prime is 409656044467. The next prime is 409656044549. The reversal of 409656044525 is 525440656904.

It is a happy number.

It is not a de Polignac number, because 409656044525 - 2⁸ = 409656044269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16998134 + ... + 17022216.

It is an arithmetic number, because the mean of its divisors is an integer number (13027244328).

Almost surely, 2^409656044525 is an apocalyptic number.

It is an amenable number.

409656044525 is a deficient number, since it is larger than the sum of its proper divisors (215651683219).

409656044525 is a wasteful number, since it uses less digits than its factorization.

409656044525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31590 (or 31585 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 409656044525 in words is "four hundred nine billion, six hundred fifty-six million, forty-four thousand, five hundred twenty-five".