523382357 has 4 divisors (see below), whose sum is σ = 528184140. Its totient is φ = 518580576.

The previous prime is 523382339. The next prime is 523382371. The reversal of 523382357 is 753283325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 411318961 + 112063396 = 20281^2 + 10586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523382357 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 523382357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523382557) 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, 2400728 + ... + 2400945.

It is an arithmetic number, because the mean of its divisors is an integer number (132046035).

Almost surely, 2^523382357 is an apocalyptic number.

It is an amenable number.

523382357 is a deficient number, since it is larger than the sum of its proper divisors (4801783).

523382357 is a wasteful number, since it uses less digits than its factorization.

523382357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801782.

The product of its digits is 151200, while the sum is 38.

The square root of 523382357 is about 22877.5513768410. The cubic root of 523382357 is about 805.8849145141.

The spelling of 523382357 in words is "five hundred twenty-three million, three hundred eighty-two thousand, three hundred fifty-seven".