15256461 has 16 divisors (see below), whose sum is σ = 22256640. Its totient is φ = 9219120.

The previous prime is 15256459. The next prime is 15256471. The reversal of 15256461 is 16465251.

It is not a de Polignac number, because 15256461 - 2¹ = 15256459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15256471) 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 15 ways as a sum of consecutive naturals, for example, 20860 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (1391040).

Almost surely, 2^15256461 is an apocalyptic number.

15256461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15256461 is a deficient number, since it is larger than the sum of its proper divisors (7000179).

15256461 is a wasteful number, since it uses less digits than its factorization.

15256461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 7200, while the sum is 30.

The square root of 15256461 is about 3905.9519966328. The cubic root of 15256461 is about 248.0187995201.

The spelling of 15256461 in words is "fifteen million, two hundred fifty-six thousand, four hundred sixty-one".