52356780 has 240 divisors, whose sum is σ = 198401280. Its totient is φ = 11337408.

The previous prime is 52356779. The next prime is 52356781. The reversal of 52356780 is 8765325.

52356780 is a `hidden beast` number, since 523 + 56 + 7 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (52356779) and next prime (52356781).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52356781) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2755611 + ... + 2755629.

It is an arithmetic number, because the mean of its divisors is an integer number (826672).

Almost surely, 2^52356780 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 52356780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99200640).

52356780 is an abundant number, since it is smaller than the sum of its proper divisors (146044500).

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

52356780 is an equidigital number, since it uses as much as digits as its factorization.

52356780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 52356780 is about 7235.7985046572. The cubic root of 52356780 is about 374.1028152037.

The spelling of 52356780 in words is "fifty-two million, three hundred fifty-six thousand, seven hundred eighty".