20245456452 has 48 divisors (see below), whose sum is σ = 52627458240. Its totient is φ = 6014563968.

The previous prime is 20245456433. The next prime is 20245456493. The reversal of 20245456452 is 25465454202.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 20245456452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233038 + ... + 2242085.

It is an arithmetic number, because the mean of its divisors is an integer number (1096405380).

Almost surely, 2^20245456452 is an apocalyptic number.

It is an amenable number.

20245456452 is an abundant number, since it is smaller than the sum of its proper divisors (32382001788).

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

20245456452 is a wasteful number, since it uses less digits than its factorization.

20245456452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475172 (or 4475170 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

The spelling of 20245456452 in words is "twenty billion, two hundred forty-five million, four hundred fifty-six thousand, four hundred fifty-two".