25374509620 has 12 divisors (see below), whose sum is σ = 53286470244. Its totient is φ = 10149803840.

The previous prime is 25374509617. The next prime is 25374509681. The reversal of 25374509620 is 2690547352.

It can be written as a sum of positive squares in 2 ways, for example, as 6079632784 + 19294876836 = 77972^2 + 138906^2 .

It is a super-3 number, since 3×25374509620³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634362721 + ... + 634362760.

It is an arithmetic number, because the mean of its divisors is an integer number (4440539187).

Almost surely, 2^25374509620 is an apocalyptic number.

25374509620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25374509620 is an abundant number, since it is smaller than the sum of its proper divisors (27911960624).

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

25374509620 is a wasteful number, since it uses less digits than its factorization.

25374509620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268725490 (or 1268725488 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 25374509620 in words is "twenty-five billion, three hundred seventy-four million, five hundred nine thousand, six hundred twenty".