15255455 has 4 divisors (see below), whose sum is σ = 18306552. Its totient is φ = 12204360.

The previous prime is 15255451. The next prime is 15255469. The reversal of 15255455 is 55455251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55455251 = 43 ⋅1289657.

It is not a de Polignac number, because 15255455 - 2² = 15255451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15255451) 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, 1525541 + ... + 1525550.

It is an arithmetic number, because the mean of its divisors is an integer number (4576638).

Almost surely, 2^15255455 is an apocalyptic number.

15255455 is a deficient number, since it is larger than the sum of its proper divisors (3051097).

15255455 is an equidigital number, since it uses as much as digits as its factorization.

15255455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051096.

The product of its digits is 25000, while the sum is 32.

The square root of 15255455 is about 3905.8232166856. The cubic root of 15255455 is about 248.0133480068.

The spelling of 15255455 in words is "fifteen million, two hundred fifty-five thousand, four hundred fifty-five".