25424312412 has 24 divisors (see below), whose sum is σ = 61369030800. Its totient is φ = 8182537216.

The previous prime is 25424312393. The next prime is 25424312429. The reversal of 25424312412 is 21421342452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25424312412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36528837 + ... + 36529532.

It is an arithmetic number, because the mean of its divisors is an integer number (2557042950).

Almost surely, 2^25424312412 is an apocalyptic number.

It is an amenable number.

25424312412 is an abundant number, since it is smaller than the sum of its proper divisors (35944718388).

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

25424312412 is a wasteful number, since it uses less digits than its factorization.

25424312412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73058405 (or 73058403 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

Adding to 25424312412 its reverse (21421342452), we get a palindrome (46845654864).

The spelling of 25424312412 in words is "twenty-five billion, four hundred twenty-four million, three hundred twelve thousand, four hundred twelve".