20122552455 has 32 divisors (see below), whose sum is σ = 33973447680. Its totient is φ = 10150060800.

The previous prime is 20122552447. The next prime is 20122552459. The reversal of 20122552455 is 55425522102.

It is a happy number.

It is not a de Polignac number, because 20122552455 - 2³ = 20122552447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122552459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296971 + ... + 358380.

It is an arithmetic number, because the mean of its divisors is an integer number (1061670240).

Almost surely, 2^20122552455 is an apocalyptic number.

20122552455 is a deficient number, since it is larger than the sum of its proper divisors (13850895225).

20122552455 is a wasteful number, since it uses less digits than its factorization.

20122552455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655471.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 20122552455 in words is "twenty billion, one hundred twenty-two million, five hundred fifty-two thousand, four hundred fifty-five".