52645420 has 12 divisors (see below), whose sum is σ = 110555424. Its totient is φ = 21058160.

The previous prime is 52645403. The next prime is 52645421. The reversal of 52645420 is 2454625.

It is not an unprimeable number, because it can be changed into a prime (52645421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316116 + ... + 1316155.

It is an arithmetic number, because the mean of its divisors is an integer number (9212952).

Almost surely, 2^52645420 is an apocalyptic number.

It is an amenable number.

52645420 is an abundant number, since it is smaller than the sum of its proper divisors (57910004).

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

52645420 is a wasteful number, since it uses less digits than its factorization.

52645420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632280 (or 2632278 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 52645420 is about 7255.7163671136. The cubic root of 52645420 is about 374.7890250315.

The spelling of 52645420 in words is "fifty-two million, six hundred forty-five thousand, four hundred twenty".