25040057 has 4 divisors (see below), whose sum is σ = 28617216. Its totient is φ = 21462900.

The previous prime is 25040051. The next prime is 25040107. The reversal of 25040057 is 75004052.

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 25040057 - 2¹⁰ = 25039033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25040051) 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, 1788569 + ... + 1788582.

It is an arithmetic number, because the mean of its divisors is an integer number (7154304).

Almost surely, 2^25040057 is an apocalyptic number.

It is an amenable number.

25040057 is a deficient number, since it is larger than the sum of its proper divisors (3577159).

25040057 is an equidigital number, since it uses as much as digits as its factorization.

25040057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577158.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 25040057 is about 5004.0040967209. The cubic root of 25040057 is about 292.5578603242.

The spelling of 25040057 in words is "twenty-five million, forty thousand, fifty-seven".