652557 has 4 divisors (see below), whose sum is σ = 870080. Its totient is φ = 435036.

The previous prime is 652549. The next prime is 652559. The reversal of 652557 is 755256.

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 not a de Polignac number, because 652557 - 2³ = 652549 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652557.

It is not an unprimeable number, because it can be changed into a prime (652559) 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 3 ways as a sum of consecutive naturals, for example, 108757 + ... + 108762.

It is an arithmetic number, because the mean of its divisors is an integer number (217520).

2⁶⁵²⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

652557 is a deficient number, since it is larger than the sum of its proper divisors (217523).

652557 is a wasteful number, since it uses less digits than its factorization.

652557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217522.

The product of its digits is 10500, while the sum is 30.

The square root of 652557 is about 807.8100024139. The cubic root of 652557 is about 86.7373502914.

The spelling of 652557 in words is "six hundred fifty-two thousand, five hundred fifty-seven".