20252758955 has 64 divisors (see below), whose sum is σ = 30101815296. Its totient is φ = 12877056000.

The previous prime is 20252758949. The next prime is 20252758957. The reversal of 20252758955 is 55985725202.

It is a de Polignac number, because none of the positive numbers 2^k-20252758955 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20252758957) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1032035 + ... + 1051475.

It is an arithmetic number, because the mean of its divisors is an integer number (470340864).

Almost surely, 2^20252758955 is an apocalyptic number.

20252758955 is a deficient number, since it is larger than the sum of its proper divisors (9849056341).

20252758955 is a wasteful number, since it uses less digits than its factorization.

20252758955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19548.

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 20252758955 in words is "twenty billion, two hundred fifty-two million, seven hundred fifty-eight thousand, nine hundred fifty-five".