25402055 has 16 divisors (see below), whose sum is σ = 35281920. Its totient is φ = 17196192.

The previous prime is 25402033. The next prime is 25402073. The reversal of 25402055 is 55020452.

It is a cyclic number.

It is not a de Polignac number, because 25402055 - 2⁶ = 25401991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25402055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829 + ... + 7358.

It is an arithmetic number, because the mean of its divisors is an integer number (2205120).

Almost surely, 2^25402055 is an apocalyptic number.

25402055 is a deficient number, since it is larger than the sum of its proper divisors (9879865).

25402055 is an equidigital number, since it uses as much as digits as its factorization.

25402055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25402055 is about 5040.0451386868. The cubic root of 25402055 is about 293.9609331526.

The spelling of 25402055 in words is "twenty-five million, four hundred two thousand, fifty-five".