53745514521372 has 144 divisors (see below), whose sum is σ = 138963544810272. Its totient is φ = 17508174727680.

The previous prime is 53745514521353. The next prime is 53745514521401. The reversal of 53745514521372 is 27312541554735.

53745514521372 is a `hidden beast` number, since 5 + 3 + 7 + 4 + 5 + 51 + 452 + 137 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1887316398 + ... + 1887344874.

It is an arithmetic number, because the mean of its divisors is an integer number (965024616738).

Almost surely, 2^{53745514521372} 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 53745514521372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69481772405136).

53745514521372 is an abundant number, since it is smaller than the sum of its proper divisors (85218030288900).

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

53745514521372 is a wasteful number, since it uses less digits than its factorization.

53745514521372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32388 (or 32383 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 54.

The spelling of 53745514521372 in words is "fifty-three trillion, seven hundred forty-five billion, five hundred fourteen million, five hundred twenty-one thousand, three hundred seventy-two".