20453633052 has 12 divisors (see below), whose sum is σ = 47725143816. Its totient is φ = 6817877680.

The previous prime is 20453633033. The next prime is 20453633063. The reversal of 20453633052 is 25033635402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20453633052² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852234699 + ... + 852234722.

It is an arithmetic number, because the mean of its divisors is an integer number (3977095318).

Almost surely, 2^20453633052 is an apocalyptic number.

It is an amenable number.

20453633052 is an abundant number, since it is smaller than the sum of its proper divisors (27271510764).

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

20453633052 is a wasteful number, since it uses less digits than its factorization.

20453633052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704469428 (or 1704469426 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 20453633052 in words is "twenty billion, four hundred fifty-three million, six hundred thirty-three thousand, fifty-two".