52355420 has 48 divisors (see below), whose sum is σ = 120445920. Its totient is φ = 18998016.

The previous prime is 52355417. The next prime is 52355447. The reversal of 52355420 is 2455325.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 52355420.

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, 13634 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (2509290).

Almost surely, 2^52355420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52355420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60222960).

52355420 is an abundant number, since it is smaller than the sum of its proper divisors (68090500).

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

52355420 is a wasteful number, since it uses less digits than its factorization.

52355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 52355420 is about 7235.7045268585. The cubic root of 52355420 is about 374.0995759910.

The spelling of 52355420 in words is "fifty-two million, three hundred fifty-five thousand, four hundred twenty".