25250057 has 4 divisors (see below), whose sum is σ = 28857216. Its totient is φ = 21642900.

The previous prime is 25250051. The next prime is 25250063. The reversal of 25250057 is 75005252.

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 an interprime number because it is at equal distance from previous prime (25250051) and next prime (25250063).

It is a cyclic number.

It is not a de Polignac number, because 25250057 - 2¹⁴ = 25233673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25250051) 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, 1803569 + ... + 1803582.

It is an arithmetic number, because the mean of its divisors is an integer number (7214304).

Almost surely, 2^25250057 is an apocalyptic number.

It is an amenable number.

25250057 is a deficient number, since it is larger than the sum of its proper divisors (3607159).

25250057 is an equidigital number, since it uses as much as digits as its factorization.

25250057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607158.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25250057 is about 5024.9434822692. The cubic root of 25250057 is about 293.3734361780.

The spelling of 25250057 in words is "twenty-five million, two hundred fifty thousand, fifty-seven".