20252515652 has 12 divisors (see below), whose sum is σ = 35442980496. Its totient is φ = 10125949800.

The previous prime is 20252515609. The next prime is 20252515697. The reversal of 20252515652 is 25651525202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137027 + ... + 243477.

It is an arithmetic number, because the mean of its divisors is an integer number (2953581708).

Almost surely, 2^20252515652 is an apocalyptic number.

It is an amenable number.

20252515652 is a deficient number, since it is larger than the sum of its proper divisors (15190464844).

20252515652 is a wasteful number, since it uses less digits than its factorization.

20252515652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154018 (or 154016 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 20252515652 in words is "twenty billion, two hundred fifty-two million, five hundred fifteen thousand, six hundred fifty-two".