53657662044 has 384 divisors, whose sum is σ = 165109432320. Its totient is φ = 13206758400.

The previous prime is 53657662007. The next prime is 53657662057. The reversal of 53657662044 is 44026675635.

It is a junction number, because it is equal to n+sod(n) for n = 53657661984 and 53657662002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 69414442 + ... + 69415214.

It is an arithmetic number, because the mean of its divisors is an integer number (429972480).

Almost surely, 2^53657662044 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 53657662044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82554716160).

53657662044 is an abundant number, since it is smaller than the sum of its proper divisors (111451770276).

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

53657662044 is a wasteful number, since it uses less digits than its factorization.

53657662044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 53657662044 in words is "fifty-three billion, six hundred fifty-seven million, six hundred sixty-two thousand, forty-four".