52659551 has 4 divisors (see below), whose sum is σ = 60182352. Its totient is φ = 45136752.

The previous prime is 52659533. The next prime is 52659553. The reversal of 52659551 is 15595625.

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 52659551 - 2⁶ = 52659487 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 (52659553) 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, 3761390 + ... + 3761403.

It is an arithmetic number, because the mean of its divisors is an integer number (15045588).

Almost surely, 2^52659551 is an apocalyptic number.

52659551 is a deficient number, since it is larger than the sum of its proper divisors (7522801).

52659551 is an equidigital number, since it uses as much as digits as its factorization.

52659551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522800.

The product of its digits is 67500, while the sum is 38.

The square root of 52659551 is about 7256.6900857071. The cubic root of 52659551 is about 374.8225554565.

The spelling of 52659551 in words is "fifty-two million, six hundred fifty-nine thousand, five hundred fifty-one".