53532720 has 120 divisors (see below), whose sum is σ = 181350000. Its totient is φ = 14151168.

The previous prime is 53532719. The next prime is 53532737. The reversal of 53532720 is 2723535.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×53532720² = 5731504221196800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107031 + ... + 107529.

It is an arithmetic number, because the mean of its divisors is an integer number (1511250).

Almost surely, 2^53532720 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 53532720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90675000).

53532720 is an abundant number, since it is smaller than the sum of its proper divisors (127817280).

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

53532720 is a wasteful number, since it uses less digits than its factorization.

53532720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 53532720 is about 7316.6057704375. The cubic root of 53532720 is about 376.8829033102.

The spelling of 53532720 in words is "fifty-three million, five hundred thirty-two thousand, seven hundred twenty".