33725738520 has 48 divisors (see below), whose sum is σ = 109608651360. Its totient is φ = 8993530176.

The previous prime is 33725738509. The next prime is 33725738521. The reversal of 33725738520 is 2583752733.

33725738520 is a `hidden beast` number, since 3 + 3 + 72 + 57 + 3 + 8 + 520 = 666.

It is a super-2 number, since 2×33725738520² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33725738521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46840944 + ... + 46841663.

It is an arithmetic number, because the mean of its divisors is an integer number (2283513570).

Almost surely, 2^33725738520 is an apocalyptic number.

33725738520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33725738520 is an abundant number, since it is smaller than the sum of its proper divisors (75882912840).

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

33725738520 is a wasteful number, since it uses less digits than its factorization.

33725738520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93682624 (or 93682617 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 33725738520 in words is "thirty-three billion, seven hundred twenty-five million, seven hundred thirty-eight thousand, five hundred twenty".