52421656 has 32 divisors (see below), whose sum is σ = 112724640. Its totient is φ = 22387968.

The previous prime is 52421653. The next prime is 52421683. The reversal of 52421656 is 65612425.

52421656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52421653) 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 7 ways as a sum of consecutive naturals, for example, 16276 + ... + 19228.

It is an arithmetic number, because the mean of its divisors is an integer number (3522645).

Almost surely, 2^52421656 is an apocalyptic number.

52421656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52421656 is an abundant number, since it is smaller than the sum of its proper divisors (60302984).

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

52421656 is a wasteful number, since it uses less digits than its factorization.

52421656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283 (or 3279 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 52421656 is about 7240.2801050788. The cubic root of 52421656 is about 374.2572700586.

The spelling of 52421656 in words is "fifty-two million, four hundred twenty-one thousand, six hundred fifty-six".