25442880190 has 64 divisors (see below), whose sum is σ = 56515253760. Its totient is φ = 8030897280.

The previous prime is 25442880167. The next prime is 25442880193. The reversal of 25442880190 is 9108824452.

It is a super-2 number, since 2×25442880190² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442880193) 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 31 ways as a sum of consecutive naturals, for example, 308005 + ... + 381775.

It is an arithmetic number, because the mean of its divisors is an integer number (883050840).

Almost surely, 2^25442880190 is an apocalyptic number.

25442880190 is an abundant number, since it is smaller than the sum of its proper divisors (31072373570).

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

25442880190 is a wasteful number, since it uses less digits than its factorization.

25442880190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74177.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 25442880190 in words is "twenty-five billion, four hundred forty-two million, eight hundred eighty thousand, one hundred ninety".