25495151 has 4 divisors (see below), whose sum is σ = 27812904. Its totient is φ = 23177400.

The previous prime is 25495111. The next prime is 25495159. The reversal of 25495151 is 15159452.

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 25495151 - 2¹⁰ = 25494127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25495159) 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, 1158860 + ... + 1158881.

It is an arithmetic number, because the mean of its divisors is an integer number (6953226).

Almost surely, 2^25495151 is an apocalyptic number.

25495151 is a deficient number, since it is larger than the sum of its proper divisors (2317753).

25495151 is a wasteful number, since it uses less digits than its factorization.

25495151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317752.

The product of its digits is 9000, while the sum is 32.

The square root of 25495151 is about 5049.2723238106. The cubic root of 25495151 is about 294.3196078477.

The spelling of 25495151 in words is "twenty-five million, four hundred ninety-five thousand, one hundred fifty-one".