52697280 has 112 divisors (see below), whose sum is σ = 177210720. Its totient is φ = 13221888.

The previous prime is 52697269. The next prime is 52697291. The reversal of 52697280 is 8279625.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52697269) and next prime (52697291).

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, 14706 + ... + 17934.

Almost surely, 2^52697280 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 52697280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88605360).

52697280 is an abundant number, since it is smaller than the sum of its proper divisors (124513440).

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

52697280 is a wasteful number, since it uses less digits than its factorization.

52697280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 52697280 is about 7259.2892214045. The cubic root of 52697280 is about 374.9120504857.

The spelling of 52697280 in words is "fifty-two million, six hundred ninety-seven thousand, two hundred eighty".