25049975 has 12 divisors (see below), whose sum is σ = 31820880. Its totient is φ = 19550400.

The previous prime is 25049971. The next prime is 25049977. The reversal of 25049975 is 57994052.

It is not a de Polignac number, because 25049975 - 2² = 25049971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25049971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11195 + ... + 13244.

It is an arithmetic number, because the mean of its divisors is an integer number (2651740).

Almost surely, 2^25049975 is an apocalyptic number.

25049975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25049975 is a deficient number, since it is larger than the sum of its proper divisors (6770905).

25049975 is a wasteful number, since it uses less digits than its factorization.

25049975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24490 (or 24485 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 25049975 is about 5004.9950049925. The cubic root of 25049975 is about 292.5964811875.

The spelling of 25049975 in words is "twenty-five million, forty-nine thousand, nine hundred seventy-five".