15255901 has 4 divisors (see below), whose sum is σ = 15269692. Its totient is φ = 15242112.

The previous prime is 15255899. The next prime is 15255941. The reversal of 15255901 is 10955251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6996025 + 8259876 = 2645^2 + 2874^2 .

It is a cyclic number.

It is not a de Polignac number, because 15255901 - 2¹ = 15255899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15255901.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (3817423).

Almost surely, 2^15255901 is an apocalyptic number.

It is an amenable number.

15255901 is a deficient number, since it is larger than the sum of its proper divisors (13791).

15255901 is a wasteful number, since it uses less digits than its factorization.

15255901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 15255901 is about 3905.8803105062. The cubic root of 15255901 is about 248.0157649101.

The spelling of 15255901 in words is "fifteen million, two hundred fifty-five thousand, nine hundred one".