652551 has 4 divisors (see below), whose sum is σ = 870072. Its totient is φ = 435032.

The previous prime is 652549. The next prime is 652559. The reversal of 652551 is 155256.

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

It is a cyclic number.

It is not a de Polignac number, because 652551 - 2¹ = 652549 is a prime.

It is a D-number.

It is a congruent number.

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, 108756 + ... + 108761.

It is an arithmetic number, because the mean of its divisors is an integer number (217518).

2⁶⁵²⁵⁵¹ is an apocalyptic number.

652551 is a deficient number, since it is larger than the sum of its proper divisors (217521).

652551 is a wasteful number, since it uses less digits than its factorization.

652551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217520.

The product of its digits is 1500, while the sum is 24.

The square root of 652551 is about 807.8062886608. The cubic root of 652551 is about 86.7370844522.

It can be divided in two parts, 65255 and 1, that added together give a palindrome (65256).

The spelling of 652551 in words is "six hundred fifty-two thousand, five hundred fifty-one".