11572562052 has 72 divisors (see below), whose sum is σ = 29803842432. Its totient is φ = 3785169600.

The previous prime is 11572561999. The next prime is 11572562063. The reversal of 11572562052 is 25026527511.

11572562052 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 25 + 620 + 5 + 2 = 666.

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 = 11572561998 and 11572562016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940363 + ... + 952589.

It is an arithmetic number, because the mean of its divisors is an integer number (413942256).

Almost surely, 2^11572562052 is an apocalyptic number.

11572562052 is a gapful number since it is divisible by the number (12) 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 11572562052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14901921216).

11572562052 is an abundant number, since it is smaller than the sum of its proper divisors (18231280380).

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

11572562052 is a wasteful number, since it uses less digits than its factorization.

11572562052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729 (or 12724 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 11572562052 in words is "eleven billion, five hundred seventy-two million, five hundred sixty-two thousand, fifty-two".