53475253664 has 24 divisors (see below), whose sum is σ = 120319321248. Its totient is φ = 22917965760.

The previous prime is 53475253649. The next prime is 53475253687. The reversal of 53475253664 is 46635257435.

It is a super-3 number, since 3×53475253664³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119364182 + ... + 119364629.

It is an arithmetic number, because the mean of its divisors is an integer number (5013305052).

Almost surely, 2^53475253664 is an apocalyptic number.

It is an amenable number.

53475253664 is an abundant number, since it is smaller than the sum of its proper divisors (66844067584).

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

53475253664 is a wasteful number, since it uses less digits than its factorization.

53475253664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238728828 (or 238728820 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 50.

The spelling of 53475253664 in words is "fifty-three billion, four hundred seventy-five million, two hundred fifty-three thousand, six hundred sixty-four".