25477090842 has 32 divisors (see below), whose sum is σ = 61298265600. Its totient is φ = 6896054448.

The previous prime is 25477090811. The next prime is 25477090843. The reversal of 25477090842 is 24809077452.

It is a junction number, because it is equal to n+sod(n) for n = 25477090791 and 25477090800.

It is not an unprimeable number, because it can be changed into a prime (25477090843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15962292 + ... + 15963887.

It is an arithmetic number, because the mean of its divisors is an integer number (1915570800).

Almost surely, 2^25477090842 is an apocalyptic number.

25477090842 is an abundant number, since it is smaller than the sum of its proper divisors (35821174758).

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

25477090842 is a wasteful number, since it uses less digits than its factorization.

25477090842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31926210.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 25477090842 in words is "twenty-five billion, four hundred seventy-seven million, ninety thousand, eight hundred forty-two".