25342957 has 4 divisors (see below), whose sum is σ = 25821180. Its totient is φ = 24864736.

The previous prime is 25342949. The next prime is 25342969. The reversal of 25342957 is 75924352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13329801 + 12013156 = 3651^2 + 3466^2 .

It is a cyclic number.

It is not a de Polignac number, because 25342957 - 2³ = 25342949 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 (25342927) 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, 239032 + ... + 239137.

It is an arithmetic number, because the mean of its divisors is an integer number (6455295).

Almost surely, 2^25342957 is an apocalyptic number.

It is an amenable number.

25342957 is a deficient number, since it is larger than the sum of its proper divisors (478223).

25342957 is an equidigital number, since it uses as much as digits as its factorization.

25342957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478222.

The product of its digits is 75600, while the sum is 37.

The square root of 25342957 is about 5034.1788804134. The cubic root of 25342957 is about 293.7327889720.

The spelling of 25342957 in words is "twenty-five million, three hundred forty-two thousand, nine hundred fifty-seven".