53202400040 has 32 divisors (see below), whose sum is σ = 120095347680. Its totient is φ = 21211636032.

The previous prime is 53202399989. The next prime is 53202400079. The reversal of 53202400040 is 4000420235.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 53202399985 and 53202400021.

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, 2153942 + ... + 2178501.

It is an arithmetic number, because the mean of its divisors is an integer number (3752979615).

Almost surely, 2^53202400040 is an apocalyptic number.

It is an amenable number.

53202400040 is an abundant number, since it is smaller than the sum of its proper divisors (66892947640).

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

53202400040 is a wasteful number, since it uses less digits than its factorization.

53202400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332761 (or 4332757 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 53202400040 its reverse (4000420235), we get a palindrome (57202820275).

The spelling of 53202400040 in words is "fifty-three billion, two hundred two million, four hundred thousand, forty".