25056949 has 4 divisors (see below), whose sum is σ = 25169536. Its totient is φ = 24944364.

The previous prime is 25056947. The next prime is 25056979. The reversal of 25056949 is 94965052.

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 25056949 - 2¹ = 25056947 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25056947) 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, 55959 + ... + 56404.

It is an arithmetic number, because the mean of its divisors is an integer number (6292384).

Almost surely, 2^25056949 is an apocalyptic number.

It is an amenable number.

25056949 is a deficient number, since it is larger than the sum of its proper divisors (112587).

25056949 is a wasteful number, since it uses less digits than its factorization.

25056949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112586.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 25056949 is about 5005.6916605001. The cubic root of 25056949 is about 292.6236319600.

The spelling of 25056949 in words is "twenty-five million, fifty-six thousand, nine hundred forty-nine".