15255402 has 8 divisors (see below), whose sum is σ = 30510816. Its totient is φ = 5085132.

The previous prime is 15255397. The next prime is 15255419. The reversal of 15255402 is 20455251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

15255402 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271278 + ... + 1271289.

It is an arithmetic number, because the mean of its divisors is an integer number (3813852).

Almost surely, 2^15255402 is an apocalyptic number.

15255402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15255402 is a wasteful number, since it uses less digits than its factorization.

15255402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542572.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 15255402 is about 3905.8164319384. The cubic root of 15255402 is about 248.0130607932.

The spelling of 15255402 in words is "fifteen million, two hundred fifty-five thousand, four hundred two".