15255940 has 24 divisors (see below), whose sum is σ = 36614592. Its totient is φ = 5230560.

The previous prime is 15255899. The next prime is 15255941. The reversal of 15255940 is 4955251.

It is not an unprimeable number, because it can be changed into a prime (15255941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54346 + ... + 54625.

It is an arithmetic number, because the mean of its divisors is an integer number (1525608).

Almost surely, 2^15255940 is an apocalyptic number.

15255940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15255940 is an abundant number, since it is smaller than the sum of its proper divisors (21358652).

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

15255940 is a wasteful number, since it uses less digits than its factorization.

15255940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108987 (or 108985 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 15255940 is about 3905.8853029755. The cubic root of 15255940 is about 248.0159762514.

The spelling of 15255940 in words is "fifteen million, two hundred fifty-five thousand, nine hundred forty".