52272557 has 4 divisors (see below), whose sum is σ = 52735260. Its totient is φ = 51809856.

The previous prime is 52272551. The next prime is 52272613. The reversal of 52272557 is 75527225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 31651876 = 4541^2 + 5626^2 .

It is a cyclic number.

It is not a de Polignac number, because 52272557 - 2⁸ = 52272301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52272551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231182 + ... + 231407.

It is an arithmetic number, because the mean of its divisors is an integer number (13183815).

Almost surely, 2^52272557 is an apocalyptic number.

It is an amenable number.

52272557 is a deficient number, since it is larger than the sum of its proper divisors (462703).

52272557 is a wasteful number, since it uses less digits than its factorization.

52272557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462702.

The product of its digits is 49000, while the sum is 35.

The square root of 52272557 is about 7229.9762793525. The cubic root of 52272557 is about 373.9021091282.

The spelling of 52272557 in words is "fifty-two million, two hundred seventy-two thousand, five hundred fifty-seven".