15055481 has 4 divisors (see below), whose sum is σ = 17206272. Its totient is φ = 12904692.

The previous prime is 15055477. The next prime is 15055517. The reversal of 15055481 is 18455051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18455051 = 311 ⋅59341.

It is a cyclic number.

It is not a de Polignac number, because 15055481 - 2² = 15055477 is a prime.

It is a super-2 number, since 2×15055481² = 453335016282722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15055451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075385 + ... + 1075398.

It is an arithmetic number, because the mean of its divisors is an integer number (4301568).

Almost surely, 2^15055481 is an apocalyptic number.

It is an amenable number.

15055481 is a deficient number, since it is larger than the sum of its proper divisors (2150791).

15055481 is an equidigital number, since it uses as much as digits as its factorization.

15055481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150790.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 15055481 is about 3880.1393016231. The cubic root of 15055481 is about 246.9248953469.

The spelling of 15055481 in words is "fifteen million, fifty-five thousand, four hundred eighty-one".