25550525 has 48 divisors (see below), whose sum is σ = 42580608. Its totient is φ = 14688000.

The previous prime is 25550519. The next prime is 25550531. The reversal of 25550525 is 52505552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25550519) and next prime (25550531).

It is not a de Polignac number, because 25550525 - 2⁴ = 25550509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24515 + ... + 25535.

It is an arithmetic number, because the mean of its divisors is an integer number (887096).

Almost surely, 2^25550525 is an apocalyptic number.

25550525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25550525 is a deficient number, since it is larger than the sum of its proper divisors (17030083).

25550525 is a wasteful number, since it uses less digits than its factorization.

25550525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 25550525 is about 5054.7527140306. The cubic root of 25550525 is about 294.5325355138.

The spelling of 25550525 in words is "twenty-five million, five hundred fifty thousand, five hundred twenty-five".