20122537254 has 16 divisors (see below), whose sum is σ = 42612432048. Its totient is φ = 6312952832.

The previous prime is 20122537249. The next prime is 20122537273. The reversal of 20122537254 is 45273522102.

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, 98639787 + ... + 98639990.

It is an arithmetic number, because the mean of its divisors is an integer number (2663277003).

Almost surely, 2^20122537254 is an apocalyptic number.

20122537254 is an abundant number, since it is smaller than the sum of its proper divisors (22489894794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122537254 is a wasteful number, since it uses less digits than its factorization.

20122537254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197279799.

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 20122537254 in words is "twenty billion, one hundred twenty-two million, five hundred thirty-seven thousand, two hundred fifty-four".