53643216257472 has 56 divisors (see below), whose sum is σ = 143257467770496. Its totient is φ = 17713959255808.

The previous prime is 53643216257461. The next prime is 53643216257503. The reversal of 53643216257472 is 27475261234635.

It is a congruent number.

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, 1305548388 + ... + 1305589475.

Almost surely, 2^{53643216257472} is an apocalyptic number.

It is an amenable number.

53643216257472 is an abundant number, since it is smaller than the sum of its proper divisors (89614251513024).

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

53643216257472 is a wasteful number, since it uses less digits than its factorization.

53643216257472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611137985 (or 2611137975 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 57.

The spelling of 53643216257472 in words is "fifty-three trillion, six hundred forty-three billion, two hundred sixteen million, two hundred fifty-seven thousand, four hundred seventy-two".