53257572000 has 576 divisors, whose sum is σ = 197472038400. Its totient is φ = 13576550400.

The previous prime is 53257571987. The next prime is 53257572019. The reversal of 53257572000 is 27575235.

It is a happy number.

53257572000 is a `hidden beast` number, since 5 + 32 + 57 + 572 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 145115817 + ... + 145116183.

It is an arithmetic number, because the mean of its divisors is an integer number (342833400).

Almost surely, 2^53257572000 is an apocalyptic number.

53257572000 is a gapful number since it is divisible by the number (50) 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 53257572000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98736019200).

53257572000 is an abundant number, since it is smaller than the sum of its proper divisors (144214466400).

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

53257572000 is a wasteful number, since it uses less digits than its factorization.

53257572000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The spelling of 53257572000 in words is "fifty-three billion, two hundred fifty-seven million, five hundred seventy-two thousand".