252626551 has 4 divisors (see below), whose sum is σ = 258001632. Its totient is φ = 247251472.

The previous prime is 252626531. The next prime is 252626573. The reversal of 252626551 is 155626252.

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 252626551 - 2¹⁷ = 252495479 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 (252626531) 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, 2687470 + ... + 2687563.

It is an arithmetic number, because the mean of its divisors is an integer number (64500408).

Almost surely, 2^252626551 is an apocalyptic number.

252626551 is a deficient number, since it is larger than the sum of its proper divisors (5375081).

252626551 is an equidigital number, since it uses as much as digits as its factorization.

252626551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375080.

The product of its digits is 36000, while the sum is 34.

The square root of 252626551 is about 15894.2301166178. The cubic root of 252626551 is about 632.1590081870.

It can be divided in two parts, 25262 and 6551, that added together give a palindrome (31813).

The spelling of 252626551 in words is "two hundred fifty-two million, six hundred twenty-six thousand, five hundred fifty-one".