25213312412 has 24 divisors (see below), whose sum is σ = 45442141920. Its totient is φ = 12231743040.

The previous prime is 25213312373. The next prime is 25213312427. The reversal of 25213312412 is 21421331252.

It is a super-2 number, since 2×25213312412² (a number of 22 digits) contains 22 as substring.

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, 184139 + ... + 290402.

It is an arithmetic number, because the mean of its divisors is an integer number (1893422580).

Almost surely, 2^25213312412 is an apocalyptic number.

It is an amenable number.

25213312412 is a deficient number, since it is larger than the sum of its proper divisors (20228829508).

25213312412 is a wasteful number, since it uses less digits than its factorization.

25213312412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474941 (or 474939 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

Adding to 25213312412 its reverse (21421331252), we get a palindrome (46634643664).

The spelling of 25213312412 in words is "twenty-five billion, two hundred thirteen million, three hundred twelve thousand, four hundred twelve".