25522151 has 4 divisors (see below), whose sum is σ = 27023472. Its totient is φ = 24020832.

The previous prime is 25522129. The next prime is 25522153. The reversal of 25522151 is 15122552.

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 25522151 - 2⁶ = 25522087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25522153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750635 + ... + 750668.

It is an arithmetic number, because the mean of its divisors is an integer number (6755868).

Almost surely, 2^25522151 is an apocalyptic number.

25522151 is a deficient number, since it is larger than the sum of its proper divisors (1501321).

25522151 is a wasteful number, since it uses less digits than its factorization.

25522151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501320.

The product of its digits is 1000, while the sum is 23.

The square root of 25522151 is about 5051.9452689039. The cubic root of 25522151 is about 294.4234684581.

The spelling of 25522151 in words is "twenty-five million, five hundred twenty-two thousand, one hundred fifty-one".