20755922507 has 4 divisors (see below), whose sum is σ = 20757133656. Its totient is φ = 20754711360.

The previous prime is 20755922501. The next prime is 20755922519. The reversal of 20755922507 is 70522955702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70522955702 = 2 ⋅35261477851.

It is a cyclic number.

It is not a de Polignac number, because 20755922507 - 2⁴ = 20755922491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20755922501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579494 + ... + 614267.

It is an arithmetic number, because the mean of its divisors is an integer number (5189283414).

Almost surely, 2^20755922507 is an apocalyptic number.

20755922507 is a deficient number, since it is larger than the sum of its proper divisors (1211149).

20755922507 is a wasteful number, since it uses less digits than its factorization.

20755922507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211148.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 20755922507 in words is "twenty billion, seven hundred fifty-five million, nine hundred twenty-two thousand, five hundred seven".