52633440 has 72 divisors (see below), whose sum is σ = 179616528. Its totient is φ = 14035200.

The previous prime is 52633433. The next prime is 52633457. The reversal of 52633440 is 4433625.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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, 16836 + ... + 19715.

It is an arithmetic number, because the mean of its divisors is an integer number (2494674).

Almost surely, 2^52633440 is an apocalyptic number.

It is an amenable number.

52633440 is an abundant number, since it is smaller than the sum of its proper divisors (126983088).

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

52633440 is a wasteful number, since it uses less digits than its factorization.

52633440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36572 (or 36561 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 52633440 is about 7254.8907641673. The cubic root of 52633440 is about 374.7605938584.

The spelling of 52633440 in words is "fifty-two million, six hundred thirty-three thousand, four hundred forty".