52725817 has 4 divisors (see below), whose sum is σ = 55500880. Its totient is φ = 49950756.

The previous prime is 52725809. The next prime is 52725839. The reversal of 52725817 is 71852725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52725817 - 2³ = 52725809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52725847) 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, 1387503 + ... + 1387540.

It is an arithmetic number, because the mean of its divisors is an integer number (13875220).

Almost surely, 2^52725817 is an apocalyptic number.

It is an amenable number.

52725817 is a deficient number, since it is larger than the sum of its proper divisors (2775063).

52725817 is a wasteful number, since it uses less digits than its factorization.

52725817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775062.

The product of its digits is 39200, while the sum is 37.

The square root of 52725817 is about 7261.2545059377. The cubic root of 52725817 is about 374.9797132729.

The spelling of 52725817 in words is "fifty-two million, seven hundred twenty-five thousand, eight hundred seventeen".