53437722624 has 832 divisors, whose sum is σ = 193753190400. Its totient is φ = 14332723200.

The previous prime is 53437722491. The next prime is 53437722631. The reversal of 53437722624 is 42622773435.

53437722624 is a `hidden beast` number, since 5 + 34 + 377 + 226 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (832).

It is a super-2 number, since 2×53437722624² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53437722624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490254282 + ... + 490254390.

Almost surely, 2^53437722624 is an apocalyptic number.

53437722624 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53437722624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96876595200).

53437722624 is an abundant number, since it is smaller than the sum of its proper divisors (140315467776).

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

53437722624 is a wasteful number, since it uses less digits than its factorization.

53437722624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 169 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 45.

The spelling of 53437722624 in words is "fifty-three billion, four hundred thirty-seven million, seven hundred twenty-two thousand, six hundred twenty-four".