402352025 has 12 divisors (see below), whose sum is σ = 499659984. Its totient is φ = 321402000.

The previous prime is 402352021. The next prime is 402352031. The reversal of 402352025 is 520253204.

It is not a de Polignac number, because 402352025 - 2² = 402352021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402352021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5630 + ... + 28920.

It is an arithmetic number, because the mean of its divisors is an integer number (41638332).

Almost surely, 2^402352025 is an apocalyptic number.

It is an amenable number.

402352025 is a deficient number, since it is larger than the sum of its proper divisors (97307959).

402352025 is a wasteful number, since it uses less digits than its factorization.

402352025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23992 (or 23987 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 402352025 is about 20058.7144403623. The cubic root of 402352025 is about 738.2476340610.

The spelling of 402352025 in words is "four hundred two million, three hundred fifty-two thousand, twenty-five".