25313761 has 4 divisors (see below), whose sum is σ = 27615024. Its totient is φ = 23012500.

The previous prime is 25313749. The next prime is 25313779. The reversal of 25313761 is 16731352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25313761 - 2⁷ = 25313633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25313711) 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, 1150615 + ... + 1150636.

It is an arithmetic number, because the mean of its divisors is an integer number (6903756).

Almost surely, 2^25313761 is an apocalyptic number.

It is an amenable number.

25313761 is a deficient number, since it is larger than the sum of its proper divisors (2301263).

25313761 is a wasteful number, since it uses less digits than its factorization.

25313761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301262.

The product of its digits is 3780, while the sum is 28.

The square root of 25313761 is about 5031.2782670013. The cubic root of 25313761 is about 293.6199487085.

The spelling of 25313761 in words is "twenty-five million, three hundred thirteen thousand, seven hundred sixty-one".