53306272 has 72 divisors (see below), whose sum is σ = 113714496. Its totient is φ = 24579456.

The previous prime is 53306269. The next prime is 53306291. The reversal of 53306272 is 27260335.

It is a self number, because there is not a number n which added to its sum of digits gives 53306272.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795583 + ... + 795649.

It is an arithmetic number, because the mean of its divisors is an integer number (1579368).

Almost surely, 2^53306272 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 53306272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56857248).

53306272 is an abundant number, since it is smaller than the sum of its proper divisors (60408224).

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

53306272 is a wasteful number, since it uses less digits than its factorization.

53306272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 53306272 is about 7301.1144354818. The cubic root of 53306272 is about 376.3507365575.

The spelling of 53306272 in words is "fifty-three million, three hundred six thousand, two hundred seventy-two".