15252890 has 16 divisors (see below), whose sum is σ = 27573480. Its totient is φ = 6074880.

The previous prime is 15252883. The next prime is 15252907. The reversal of 15252890 is 9825251.

It can be written as a sum of positive squares in 4 ways, for example, as 14691889 + 561001 = 3833^2 + 749^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 5574.

Almost surely, 2^15252890 is an apocalyptic number.

15252890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15252890 is a deficient number, since it is larger than the sum of its proper divisors (12320590).

15252890 is a wasteful number, since it uses less digits than its factorization.

15252890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 15252890 is about 3905.4948470072. The cubic root of 15252890 is about 247.9994471892. Note that the first 3 decimals are identical.

The spelling of 15252890 in words is "fifteen million, two hundred fifty-two thousand, eight hundred ninety".