15252891 has 8 divisors (see below), whose sum is σ = 20455440. Its totient is φ = 10109472.

The previous prime is 15252883. The next prime is 15252907. The reversal of 15252891 is 19825251.

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

It is not a de Polignac number, because 15252891 - 2³ = 15252883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15252821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14176 + ... + 15213.

It is an arithmetic number, because the mean of its divisors is an integer number (2556930).

Almost surely, 2^15252891 is an apocalyptic number.

15252891 is a deficient number, since it is larger than the sum of its proper divisors (5202549).

15252891 is a wasteful number, since it uses less digits than its factorization.

15252891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29565.

The product of its digits is 7200, while the sum is 33.

The square root of 15252891 is about 3905.4949750320. The cubic root of 15252891 is about 247.9994526089. Note that the first 3 decimals are identical.

The spelling of 15252891 in words is "fifteen million, two hundred fifty-two thousand, eight hundred ninety-one".