52199420 has 192 divisors, whose sum is σ = 149022720. Its totient is φ = 14902272.

The previous prime is 52199417. The next prime is 52199429. The reversal of 52199420 is 2499125.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52199429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1213919 + ... + 1213961.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^52199420 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 52199420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74511360).

52199420 is an abundant number, since it is smaller than the sum of its proper divisors (96823300).

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

52199420 is a wasteful number, since it uses less digits than its factorization.

52199420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 52199420 is about 7224.9166085153. The cubic root of 52199420 is about 373.7276463777.

The spelling of 52199420 in words is "fifty-two million, one hundred ninety-nine thousand, four hundred twenty".