25228445802 has 32 divisors (see below), whose sum is σ = 57987187200. Its totient is φ = 7167856368.

The previous prime is 25228445777. The next prime is 25228445807. The reversal of 25228445802 is 20854482252.

It is a happy number.

25228445802 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (25228445807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670352 + ... + 1685387.

It is an arithmetic number, because the mean of its divisors is an integer number (1812099600).

Almost surely, 2^25228445802 is an apocalyptic number.

25228445802 is an abundant number, since it is smaller than the sum of its proper divisors (32758741398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25228445802 is a wasteful number, since it uses less digits than its factorization.

25228445802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355930.

The product of its (nonzero) digits is 409600, while the sum is 42.

The spelling of 25228445802 in words is "twenty-five billion, two hundred twenty-eight million, four hundred forty-five thousand, eight hundred two".