15125012650 has 24 divisors (see below), whose sum is σ = 30690026784. Its totient is φ = 5500004400.

The previous prime is 15125012603. The next prime is 15125012663. The reversal of 15125012650 is 5621052151.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13749462 + ... + 13750561.

It is an arithmetic number, because the mean of its divisors is an integer number (1278751116).

Almost surely, 2^15125012650 is an apocalyptic number.

15125012650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15125012650 is an abundant number, since it is smaller than the sum of its proper divisors (15565014134).

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

15125012650 is a wasteful number, since it uses less digits than its factorization.

15125012650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27500046 (or 27500041 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

It can be divided in two parts, 1512501 and 2650, that added together give a palindrome (1515151).

The spelling of 15125012650 in words is "fifteen billion, one hundred twenty-five million, twelve thousand, six hundred fifty".