25757975 has 12 divisors (see below), whose sum is σ = 33819264. Its totient is φ = 19393920.

The previous prime is 25757933. The next prime is 25757981. The reversal of 25757975 is 57975752.

It is not a de Polignac number, because 25757975 - 2¹² = 25753879 is a prime.

It is a super-2 number, since 2×25757975² = 1326946552201250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29879 + ... + 30728.

It is an arithmetic number, because the mean of its divisors is an integer number (2818272).

Almost surely, 2^25757975 is an apocalyptic number.

25757975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25757975 is a deficient number, since it is larger than the sum of its proper divisors (8061289).

25757975 is a wasteful number, since it uses less digits than its factorization.

25757975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60634 (or 60629 counting only the distinct ones).

The product of its digits is 771750, while the sum is 47.

The square root of 25757975 is about 5075.2315218126. The cubic root of 25757975 is about 295.3275113913.

The spelling of 25757975 in words is "twenty-five million, seven hundred fifty-seven thousand, nine hundred seventy-five".