404252725 has 12 divisors (see below), whose sum is σ = 504280224. Its totient is φ = 321462320.

The previous prime is 404252701. The next prime is 404252729. The reversal of 404252725 is 527252404.

It is not a de Polignac number, because 404252725 - 2⁹ = 404252213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404252729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44239 + ... + 52588.

It is an arithmetic number, because the mean of its divisors is an integer number (42023352).

Almost surely, 2^404252725 is an apocalyptic number.

It is an amenable number.

404252725 is a deficient number, since it is larger than the sum of its proper divisors (100027499).

404252725 is a wasteful number, since it uses less digits than its factorization.

404252725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97004 (or 96999 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 404252725 is about 20106.0370287135. The cubic root of 404252725 is about 739.4082955648.

The spelling of 404252725 in words is "four hundred four million, two hundred fifty-two thousand, seven hundred twenty-five".