25572957 has 8 divisors (see below), whose sum is σ = 35018976. Its totient is φ = 16587792.

The previous prime is 25572931. The next prime is 25572959. The reversal of 25572957 is 75927552.

It is a happy number.

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

It is not a de Polignac number, because 25572957 - 2¹² = 25568861 is a prime.

It is a super-3 number, since 3×25572957³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115083 + ... + 115304.

It is an arithmetic number, because the mean of its divisors is an integer number (4377372).

Almost surely, 2^25572957 is an apocalyptic number.

It is an amenable number.

25572957 is a deficient number, since it is larger than the sum of its proper divisors (9446019).

25572957 is a wasteful number, since it uses less digits than its factorization.

25572957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230427.

The product of its digits is 220500, while the sum is 42.

The square root of 25572957 is about 5056.9711290455. The cubic root of 25572957 is about 294.6187049273.

The spelling of 25572957 in words is "twenty-five million, five hundred seventy-two thousand, nine hundred fifty-seven".