25422355212 has 24 divisors (see below), whose sum is σ = 59352073536. Its totient is φ = 8469369168.

The previous prime is 25422355207. The next prime is 25422355213. The reversal of 25422355212 is 21255322452.

It is a super-2 number, since 2×25422355212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25422355213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571318 + ... + 614205.

It is an arithmetic number, because the mean of its divisors is an integer number (2473003064).

Almost surely, 2^25422355212 is an apocalyptic number.

It is an amenable number.

25422355212 is an abundant number, since it is smaller than the sum of its proper divisors (33929718324).

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

25422355212 is a wasteful number, since it uses less digits than its factorization.

25422355212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187317 (or 1187315 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

Adding to 25422355212 its reverse (21255322452), we get a palindrome (46677677664).

The spelling of 25422355212 in words is "twenty-five billion, four hundred twenty-two million, three hundred fifty-five thousand, two hundred twelve".