52786620 has 96 divisors (see below), whose sum is σ = 166790400. Its totient is φ = 13856832.

The previous prime is 52786609. The next prime is 52786621. The reversal of 52786620 is 2668725.

52786620 is a `hidden beast` number, since 5 + 27 + 8 + 6 + 620 = 666.

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 (52786621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35451 + ... + 36909.

It is an arithmetic number, because the mean of its divisors is an integer number (1737400).

Almost surely, 2^52786620 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 52786620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83395200).

52786620 is an abundant number, since it is smaller than the sum of its proper divisors (114003780).

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

52786620 is a wasteful number, since it uses less digits than its factorization.

52786620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 52786620 is about 7265.4401105508. The cubic root of 52786620 is about 375.1237991256.

The spelling of 52786620 in words is "fifty-two million, seven hundred eighty-six thousand, six hundred twenty".