523250551 has 4 divisors (see below), whose sum is σ = 524922592. Its totient is φ = 521578512.

The previous prime is 523250501. The next prime is 523250591. The reversal of 523250551 is 155052325.

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 523250551 - 2⁷ = 523250423 is a prime.

It is a super-2 number, since 2×523250551² = 547582278243607202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523250501) 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, 835551 + ... + 836176.

It is an arithmetic number, because the mean of its divisors is an integer number (131230648).

Almost surely, 2^523250551 is an apocalyptic number.

523250551 is a deficient number, since it is larger than the sum of its proper divisors (1672041).

523250551 is a wasteful number, since it uses less digits than its factorization.

523250551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672040.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 523250551 is about 22874.6705112882. The cubic root of 523250551 is about 805.8172588232.

The spelling of 523250551 in words is "five hundred twenty-three million, two hundred fifty thousand, five hundred fifty-one".