53400531993 has 8 divisors (see below), whose sum is σ = 71211917568. Its totient is φ = 35594750544.

The previous prime is 53400531983. The next prime is 53400532037. The reversal of 53400531993 is 39913500435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53400531993 - 2³⁰ = 52326790169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53400531913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378746 + ... + 1416947.

It is an arithmetic number, because the mean of its divisors is an integer number (8901489696).

Almost surely, 2^53400531993 is an apocalyptic number.

It is an amenable number.

53400531993 is a deficient number, since it is larger than the sum of its proper divisors (17811385575).

53400531993 is a wasteful number, since it uses less digits than its factorization.

53400531993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802063.

The product of its (nonzero) digits is 218700, while the sum is 42.

The spelling of 53400531993 in words is "fifty-three billion, four hundred million, five hundred thirty-one thousand, nine hundred ninety-three".