15056540 has 24 divisors (see below), whose sum is σ = 31930080. Its totient is φ = 5963328.

The previous prime is 15056537. The next prime is 15056557. The reversal of 15056540 is 4565051.

It is a congruent number.

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, 1595 + ... + 5714.

It is an arithmetic number, because the mean of its divisors is an integer number (1330420).

Almost surely, 2^15056540 is an apocalyptic number.

15056540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15056540 is an abundant number, since it is smaller than the sum of its proper divisors (16873540).

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

15056540 is a wasteful number, since it uses less digits than its factorization.

15056540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421 (or 7419 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 15056540 is about 3880.2757633962. The cubic root of 15056540 is about 246.9306847630.

The spelling of 15056540 in words is "fifteen million, fifty-six thousand, five hundred forty".