25550151 has 16 divisors (see below), whose sum is σ = 37314048. Its totient is φ = 15422400.

The previous prime is 25550149. The next prime is 25550159. The reversal of 25550151 is 15105552.

It is not a de Polignac number, because 25550151 - 2¹ = 25550149 is a prime.

It is a super-2 number, since 2×25550151² = 1305620432245602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25550159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7515 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (2332128).

Almost surely, 2^25550151 is an apocalyptic number.

25550151 is a deficient number, since it is larger than the sum of its proper divisors (11763897).

25550151 is a wasteful number, since it uses less digits than its factorization.

25550151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 25550151 is about 5054.7157190093. The cubic root of 25550151 is about 294.5310984173.

It can be divided in two parts, 255501 and 51, that added together give a palindrome (255552).

The spelling of 25550151 in words is "twenty-five million, five hundred fifty thousand, one hundred fifty-one".