15055990 has 8 divisors (see below), whose sum is σ = 27100800. Its totient is φ = 6022392.

The previous prime is 15055981. The next prime is 15056009. The reversal of 15055990 is 9955051.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752790 + ... + 752809.

It is an arithmetic number, because the mean of its divisors is an integer number (3387600).

Almost surely, 2^15055990 is an apocalyptic number.

15055990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15055990 is a deficient number, since it is larger than the sum of its proper divisors (12044810).

15055990 is a wasteful number, since it uses less digits than its factorization.

15055990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505606.

The product of its (nonzero) digits is 10125, while the sum is 34.

The square root of 15055990 is about 3880.2048914974. The cubic root of 15055990 is about 246.9276780180.

The spelling of 15055990 in words is "fifteen million, fifty-five thousand, nine hundred ninety".