652539557 has 4 divisors (see below), whose sum is σ = 655020960. Its totient is φ = 650058156.

The previous prime is 652539533. The next prime is 652539617. The reversal of 652539557 is 755935256.

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 652539557 - 2²⁴ = 635762341 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 (652539157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240307 + ... + 1240832.

It is an arithmetic number, because the mean of its divisors is an integer number (163755240).

Almost surely, 2^652539557 is an apocalyptic number.

It is an amenable number.

652539557 is a deficient number, since it is larger than the sum of its proper divisors (2481403).

652539557 is a wasteful number, since it uses less digits than its factorization.

652539557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481402.

The product of its digits is 1417500, while the sum is 47.

The square root of 652539557 is about 25544.8538261623. The cubic root of 652539557 is about 867.3657744806.

The spelling of 652539557 in words is "six hundred fifty-two million, five hundred thirty-nine thousand, five hundred fifty-seven".