52201557 has 16 divisors (see below), whose sum is σ = 77472000. Its totient is φ = 34739712.

The previous prime is 52201549. The next prime is 52201571. The reversal of 52201557 is 75510225.

It is a happy number.

It is not a de Polignac number, because 52201557 - 2³ = 52201549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 52201557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52201507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18069 + ... + 20757.

It is an arithmetic number, because the mean of its divisors is an integer number (4842000).

Almost surely, 2^52201557 is an apocalyptic number.

It is an amenable number.

52201557 is a deficient number, since it is larger than the sum of its proper divisors (25270443).

52201557 is a wasteful number, since it uses less digits than its factorization.

52201557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417 (or 3411 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52201557 is about 7225.0644979820. The cubic root of 52201557 is about 373.7327463391.

52201557 divided by its sum of digits (27) gives a palindrome (1933391).

The spelling of 52201557 in words is "fifty-two million, two hundred one thousand, five hundred fifty-seven".