20252972605 has 8 divisors (see below), whose sum is σ = 24313612032. Its totient is φ = 16195681488.

The previous prime is 20252972587. The next prime is 20252972647. The reversal of 20252972605 is 50627925202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20252972605 - 2⁵ = 20252972573 is a prime.

It is a Duffinian number.

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, 823749 + ... + 847978.

It is an arithmetic number, because the mean of its divisors is an integer number (3039201504).

Almost surely, 2^20252972605 is an apocalyptic number.

It is an amenable number.

20252972605 is a deficient number, since it is larger than the sum of its proper divisors (4060639427).

20252972605 is a wasteful number, since it uses less digits than its factorization.

20252972605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674155.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 20252972605 in words is "twenty billion, two hundred fifty-two million, nine hundred seventy-two thousand, six hundred five".