53407375440 has 80 divisors (see below), whose sum is σ = 175301869248. Its totient is φ = 13404203008.

The previous prime is 53407375387. The next prime is 53407375451. The reversal of 53407375440 is 4457370435.

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

It is a junction number, because it is equal to n+sod(n) for n = 53407375392 and 53407375401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6540942 + ... + 6549101.

Almost surely, 2^53407375440 is an apocalyptic number.

It is an amenable number.

53407375440 is an abundant number, since it is smaller than the sum of its proper divisors (121894493808).

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

53407375440 is a wasteful number, since it uses less digits than its factorization.

53407375440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13090076 (or 13090070 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 53407375440 in words is "fifty-three billion, four hundred seven million, three hundred seventy-five thousand, four hundred forty".