25113555 has 24 divisors (see below), whose sum is σ = 43693728. Its totient is φ = 13343616.

The previous prime is 25113541. The next prime is 25113581. The reversal of 25113555 is 55531152.

It is not a de Polignac number, because 25113555 - 2⁵ = 25113523 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13194 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (1820572).

Almost surely, 2^25113555 is an apocalyptic number.

25113555 is a deficient number, since it is larger than the sum of its proper divisors (18580173).

25113555 is a wasteful number, since it uses less digits than its factorization.

25113555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2104 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 25113555 is about 5011.3426344643. The cubic root of 25113555 is about 292.8438209855.

The spelling of 25113555 in words is "twenty-five million, one hundred thirteen thousand, five hundred fifty-five".