25552151 has 4 divisors (see below), whose sum is σ = 25589304. Its totient is φ = 25515000.

The previous prime is 25552147. The next prime is 25552157. The reversal of 25552151 is 15125552.

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

It is a cyclic number.

It is not a de Polignac number, because 25552151 - 2² = 25552147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25552151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25552157) 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, 17525 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (6397326).

Almost surely, 2^25552151 is an apocalyptic number.

25552151 is a deficient number, since it is larger than the sum of its proper divisors (37153).

25552151 is an equidigital number, since it uses as much as digits as its factorization.

25552151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37152.

The product of its digits is 2500, while the sum is 26.

The square root of 25552151 is about 5054.9135502004. The cubic root of 25552151 is about 294.5387832620.

Multiplying 25552151 by its sum of digits (26), we get a triangular number (664355926 = T₃₆₄₅₁).

The spelling of 25552151 in words is "twenty-five million, five hundred fifty-two thousand, one hundred fifty-one".