25130551388 has 24 divisors (see below), whose sum is σ = 46036537344. Its totient is φ = 11988673200.

The previous prime is 25130551363. The next prime is 25130551409. The reversal of 25130551388 is 88315503152.

It is a super-2 number, since 2×25130551388² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1418420 + ... + 1436027.

It is an arithmetic number, because the mean of its divisors is an integer number (1918189056).

Almost surely, 2^25130551388 is an apocalyptic number.

It is an amenable number.

25130551388 is a deficient number, since it is larger than the sum of its proper divisors (20905985956).

25130551388 is a wasteful number, since it uses less digits than its factorization.

25130551388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854553 (or 2854551 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 25130551388 in words is "twenty-five billion, one hundred thirty million, five hundred fifty-one thousand, three hundred eighty-eight".