15255651 has 8 divisors (see below), whose sum is σ = 21411520. Its totient is φ = 9635112.

The previous prime is 15255629. The next prime is 15255661. The reversal of 15255651 is 15655251.

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

It is not a de Polignac number, because 15255651 - 2⁶ = 15255587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15255661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133765 + ... + 133878.

It is an arithmetic number, because the mean of its divisors is an integer number (2676440).

Almost surely, 2^15255651 is an apocalyptic number.

15255651 is a deficient number, since it is larger than the sum of its proper divisors (6155869).

15255651 is a wasteful number, since it uses less digits than its factorization.

15255651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267665.

The product of its digits is 7500, while the sum is 30.

The square root of 15255651 is about 3905.8483073463. The cubic root of 15255651 is about 248.0144101495.

The spelling of 15255651 in words is "fifteen million, two hundred fifty-five thousand, six hundred fifty-one".