402053025 has 48 divisors (see below), whose sum is σ = 727953408. Its totient is φ = 194184000.

The previous prime is 402053021. The next prime is 402053039. The reversal of 402053025 is 520350204.

It is not a de Polignac number, because 402053025 - 2² = 402053021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402052992 and 402053010.

It is not an unprimeable number, because it can be changed into a prime (402053021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255792 + ... + 257358.

It is an arithmetic number, because the mean of its divisors is an integer number (15165696).

Almost surely, 2^402053025 is an apocalyptic number.

It is an amenable number.

402053025 is a deficient number, since it is larger than the sum of its proper divisors (325900383).

402053025 is a wasteful number, since it uses less digits than its factorization.

402053025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 402053025 is about 20051.2599354754. The cubic root of 402053025 is about 738.0647173363.

The spelling of 402053025 in words is "four hundred two million, fifty-three thousand, twenty-five".