25802057 has 8 divisors (see below), whose sum is σ = 27621600. Its totient is φ = 24028704.

The previous prime is 25802053. The next prime is 25802059. The reversal of 25802057 is 75020852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25802057 - 2² = 25802053 is a prime.

It is a super-2 number, since 2×25802057² = 1331492290862498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25802053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10388 + ... + 12629.

It is an arithmetic number, because the mean of its divisors is an integer number (3452700).

Almost surely, 2^25802057 is an apocalyptic number.

It is an amenable number.

25802057 is a deficient number, since it is larger than the sum of its proper divisors (1819543).

25802057 is a wasteful number, since it uses less digits than its factorization.

25802057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23095.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 25802057 is about 5079.5725213841. The cubic root of 25802057 is about 295.4958891170.

The spelling of 25802057 in words is "twenty-five million, eight hundred two thousand, fifty-seven".