623052251 has 4 divisors (see below), whose sum is σ = 623182512. Its totient is φ = 622921992.

The previous prime is 623052233. The next prime is 623052289. The reversal of 623052251 is 152250326.

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 623052251 - 2²⁶ = 555943387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623052251.

It is not an unprimeable number, because it can be changed into a prime (623052751) 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, 57671 + ... + 67616.

It is an arithmetic number, because the mean of its divisors is an integer number (155795628).

Almost surely, 2^623052251 is an apocalyptic number.

623052251 is a deficient number, since it is larger than the sum of its proper divisors (130261).

623052251 is a wasteful number, since it uses less digits than its factorization.

623052251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130260.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 623052251 is about 24961.0146228073. The cubic root of 623052251 is about 854.0988880657.

The spelling of 623052251 in words is "six hundred twenty-three million, fifty-two thousand, two hundred fifty-one".