25324224040 has 64 divisors (see below), whose sum is σ = 57370818960. Its totient is φ = 10060277760.

The previous prime is 25324224017. The next prime is 25324224047. The reversal of 25324224040 is 4042242352.

It can be written as a sum of positive squares in 8 ways, for example, as 373494276 + 24950729764 = 19326^2 + 157958^2 .

It is a super-2 number, since 2×25324224040² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25324224047) 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, 6782014 + ... + 6785746.

Almost surely, 2^25324224040 is an apocalyptic number.

25324224040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25324224040 is an abundant number, since it is smaller than the sum of its proper divisors (32046594920).

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

25324224040 is a wasteful number, since it uses less digits than its factorization.

25324224040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862 (or 4858 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 25324224040 its reverse (4042242352), we get a palindrome (29366466392).

The spelling of 25324224040 in words is "twenty-five billion, three hundred twenty-four million, two hundred twenty-four thousand, forty".