25215600630 has 64 divisors (see below), whose sum is σ = 68295571200. Its totient is φ = 5902081920.

The previous prime is 25215600629. The next prime is 25215600643. The reversal of 25215600630 is 3600651252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1307860 + ... + 1326999.

It is an arithmetic number, because the mean of its divisors is an integer number (1067118300).

Almost surely, 2^25215600630 is an apocalyptic number.

25215600630 is an abundant number, since it is smaller than the sum of its proper divisors (43079970570).

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

25215600630 is a wasteful number, since it uses less digits than its factorization.

25215600630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634909.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 25215600630 in words is "twenty-five billion, two hundred fifteen million, six hundred thousand, six hundred thirty".