52356140 has 12 divisors (see below), whose sum is σ = 109947936. Its totient is φ = 20942448.

The previous prime is 52356133. The next prime is 52356149. The reversal of 52356140 is 4165325.

52356140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52356149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308884 + ... + 1308923.

It is an arithmetic number, because the mean of its divisors is an integer number (9162328).

Almost surely, 2^52356140 is an apocalyptic number.

It is an amenable number.

52356140 is an abundant number, since it is smaller than the sum of its proper divisors (57591796).

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

52356140 is a wasteful number, since it uses less digits than its factorization.

52356140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617816 (or 2617814 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 52356140 is about 7235.7542799628. The cubic root of 52356140 is about 374.1012908753.

The spelling of 52356140 in words is "fifty-two million, three hundred fifty-six thousand, one hundred forty".