15052625640 has 192 divisors, whose sum is σ = 54108709200. Its totient is φ = 3605078016.

The previous prime is 15052625633. The next prime is 15052625659. The reversal of 15052625640 is 4652625051.

15052625640 is a `hidden beast` number, since 1 + 5 + 0 + 5 + 2 + 6 + 2 + 5 + 640 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4989727044 + 10062898596 = 70638^2 + 100314^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15052625595 and 15052625604.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129696 + ... + 216624.

Almost surely, 2^15052625640 is an apocalyptic number.

15052625640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15052625640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27054354600).

15052625640 is an abundant number, since it is smaller than the sum of its proper divisors (39056083560).

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

15052625640 is a wasteful number, since it uses less digits than its factorization.

15052625640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86996 (or 86989 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 15052625640 in words is "fifteen billion, fifty-two million, six hundred twenty-five thousand, six hundred forty".