25130962540 has 24 divisors (see below), whose sum is σ = 52848452160. Its totient is φ = 10038398208.

The previous prime is 25130962529. The next prime is 25130962559. The reversal of 25130962540 is 4526903152.

It is a self number, because there is not a number n which added to its sum of digits gives 25130962540.

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, 859437 + ... + 888196.

It is an arithmetic number, because the mean of its divisors is an integer number (2202018840).

Almost surely, 2^25130962540 is an apocalyptic number.

25130962540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25130962540 is an abundant number, since it is smaller than the sum of its proper divisors (27717489620).

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

25130962540 is a wasteful number, since it uses less digits than its factorization.

25130962540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748361 (or 1748359 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 25130962540 in words is "twenty-five billion, one hundred thirty million, nine hundred sixty-two thousand, five hundred forty".