53557252416 has 336 divisors, whose sum is σ = 164671004160. Its totient is φ = 16605388800.

The previous prime is 53557252339. The next prime is 53557252447. The reversal of 53557252416 is 61425275535.

It is a happy number.

53557252416 is a `hidden beast` number, since 5 + 3 + 55 + 72 + 524 + 1 + 6 = 666.

It is a super-2 number, since 2×53557252416² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76400866 + ... + 76401566.

Almost surely, 2^53557252416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53557252416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82335502080).

53557252416 is an abundant number, since it is smaller than the sum of its proper divisors (111113751744).

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

53557252416 is a wasteful number, since it uses less digits than its factorization.

53557252416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 881 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The spelling of 53557252416 in words is "fifty-three billion, five hundred fifty-seven million, two hundred fifty-two thousand, four hundred sixteen".