52697736 has 192 divisors, whose sum is σ = 183859200. Its totient is φ = 13862016.

The previous prime is 52697707. The next prime is 52697759. The reversal of 52697736 is 63779625.

52697736 is a `hidden beast` number, since 526 + 97 + 7 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 52697691 and 52697700.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137401 + ... + 137783.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^52697736 is an apocalyptic number.

52697736 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52697736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91929600).

52697736 is an abundant number, since it is smaller than the sum of its proper divisors (131161464).

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

52697736 is a wasteful number, since it uses less digits than its factorization.

52697736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 408 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 52697736 is about 7259.3206293702. The cubic root of 52697736 is about 374.9131318787.

The spelling of 52697736 in words is "fifty-two million, six hundred ninety-seven thousand, seven hundred thirty-six".