2115520052 has 24 divisors (see below), whose sum is σ = 3927699720. Its totient is φ = 993566720.

The previous prime is 2115520049. The next prime is 2115520061. The reversal of 2115520052 is 2500255112.

It can be written as a sum of positive squares in 4 ways, for example, as 286760356 + 1828759696 = 16934^2 + 42764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 65172.

It is an arithmetic number, because the mean of its divisors is an integer number (163654155).

Almost surely, 2^2115520052 is an apocalyptic number.

It is an amenable number.

2115520052 is a deficient number, since it is larger than the sum of its proper divisors (1812179668).

2115520052 is a wasteful number, since it uses less digits than its factorization.

2115520052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61651 (or 61649 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2115520052 is about 45994.7828780613. The cubic root of 2115520052 is about 1283.7261322975.

Adding to 2115520052 its reverse (2500255112), we get a palindrome (4615775164).

The spelling of 2115520052 in words is "two billion, one hundred fifteen million, five hundred twenty thousand, fifty-two".