25757953 has 16 divisors (see below), whose sum is σ = 29143296. Its totient is φ = 22587840.

The previous prime is 25757933. The next prime is 25757981. The reversal of 25757953 is 35975752.

It is not a de Polignac number, because 25757953 - 2⁹ = 25757441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25757933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82668 + ... + 82978.

It is an arithmetic number, because the mean of its divisors is an integer number (1821456).

Almost surely, 2^25757953 is an apocalyptic number.

25757953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25757953 is a deficient number, since it is larger than the sum of its proper divisors (3385343).

25757953 is a wasteful number, since it uses less digits than its factorization.

25757953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its digits is 330750, while the sum is 43.

The square root of 25757953 is about 5075.2293544233. The cubic root of 25757953 is about 295.3274273111.

The spelling of 25757953 in words is "twenty-five million, seven hundred fifty-seven thousand, nine hundred fifty-three".