25613051 has 4 divisors (see below), whose sum is σ = 25674600. Its totient is φ = 25551504.

The previous prime is 25613047. The next prime is 25613059. The reversal of 25613051 is 15031652.

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 25613051 - 2² = 25613047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25613059) 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, 30146 + ... + 30983.

It is an arithmetic number, because the mean of its divisors is an integer number (6418650).

Almost surely, 2^25613051 is an apocalyptic number.

25613051 is a deficient number, since it is larger than the sum of its proper divisors (61549).

25613051 is an equidigital number, since it uses as much as digits as its factorization.

25613051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61548.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 25613051 is about 5060.9338071150. The cubic root of 25613051 is about 294.7725950234.

The spelling of 25613051 in words is "twenty-five million, six hundred thirteen thousand, fifty-one".