53233656 has 64 divisors (see below), whose sum is σ = 155654400. Its totient is φ = 14853888.

The previous prime is 53233633. The next prime is 53233673. The reversal of 53233656 is 65633235.

It is a super-2 number, since 2×53233656² = 5667644262252672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540 + ... + 10908.

It is an arithmetic number, because the mean of its divisors is an integer number (2432100).

Almost surely, 2^53233656 is an apocalyptic number.

53233656 is a gapful number since it is divisible by the number (56) 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 53233656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77827200).

53233656 is an abundant number, since it is smaller than the sum of its proper divisors (102420744).

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

53233656 is a wasteful number, since it uses less digits than its factorization.

53233656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428 (or 7424 counting only the distinct ones).

The product of its digits is 48600, while the sum is 33.

The square root of 53233656 is about 7296.1398012922. The cubic root of 53233656 is about 376.1797654062.

The spelling of 53233656 in words is "fifty-three million, two hundred thirty-three thousand, six hundred fifty-six".