20152053400 has 48 divisors (see below), whose sum is σ = 47089062000. Its totient is φ = 8020298880.

The previous prime is 20152053349. The next prime is 20152053413. The reversal of 20152053400 is 435025102.

It is a super-2 number, since 2×20152053400² (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 11 ways as a sum of consecutive naturals, for example, 213367 + ... + 292966.

It is an arithmetic number, because the mean of its divisors is an integer number (981022125).

Almost surely, 2^20152053400 is an apocalyptic number.

20152053400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20152053400 is an abundant number, since it is smaller than the sum of its proper divisors (26937008600).

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

20152053400 is a wasteful number, since it uses less digits than its factorization.

20152053400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506548 (or 506539 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20152053400 its reverse (435025102), we get a palindrome (20587078502).

The spelling of 20152053400 in words is "twenty billion, one hundred fifty-two million, fifty-three thousand, four hundred".