400052557725 has 48 divisors (see below), whose sum is σ = 696542710080. Its totient is φ = 202041561600.

The previous prime is 400052557703. The next prime is 400052557759. The reversal of 400052557725 is 527755250004.

It is not a de Polignac number, because 400052557725 - 2⁶ = 400052557661 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, 3188887 + ... + 3311963.

It is an arithmetic number, because the mean of its divisors is an integer number (14511306460).

Almost surely, 2^400052557725 is an apocalyptic number.

It is an amenable number.

400052557725 is a deficient number, since it is larger than the sum of its proper divisors (296490152355).

400052557725 is a wasteful number, since it uses less digits than its factorization.

400052557725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125390 (or 125385 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 42.

The spelling of 400052557725 in words is "four hundred billion, fifty-two million, five hundred fifty-seven thousand, seven hundred twenty-five".