25055855 has 32 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 16804480.

The previous prime is 25055837. The next prime is 25055857. The reversal of 25055855 is 55855052.

25055855 = T₂₂₆ + T₂₂₇ + ... + T₅₄₄.

It is a happy number.

It is not a de Polignac number, because 25055855 - 2⁸ = 25055599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25055857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36344 + ... + 37026.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^25055855 is an apocalyptic number.

25055855 is a deficient number, since it is larger than the sum of its proper divisors (10402705).

25055855 is a wasteful number, since it uses less digits than its factorization.

25055855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 50000, while the sum is 35.

The square root of 25055855 is about 5005.5823836992. The cubic root of 25055855 is about 292.6193731958.

The spelling of 25055855 in words is "twenty-five million, fifty-five thousand, eight hundred fifty-five".