53400365040 has 80 divisors (see below), whose sum is σ = 180590334336. Its totient is φ = 12945542400.

The previous prime is 53400365017. The next prime is 53400365063. The reversal of 53400365040 is 4056300435.

It is an interprime number because it is at equal distance from previous prime (53400365017) and next prime (53400365063).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53400364989 and 53400365007.

It is a congruent number.

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, 10111066 + ... + 10116345.

Almost surely, 2^53400365040 is an apocalyptic number.

It is an amenable number.

53400365040 is an abundant number, since it is smaller than the sum of its proper divisors (127189969296).

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

53400365040 is a wasteful number, since it uses less digits than its factorization.

53400365040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20227438 (or 20227432 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 53400365040 its reverse (4056300435), we get a palindrome (57456665475).

The spelling of 53400365040 in words is "fifty-three billion, four hundred million, three hundred sixty-five thousand, forty".