523151320 has 32 divisors (see below), whose sum is σ = 1239044400. Its totient is φ = 198246528.

The previous prime is 523151309. The next prime is 523151323. The reversal of 523151320 is 23151325.

It is a junction number, because it is equal to n+sod(n) for n = 523151291 and 523151300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523151323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343419 + ... + 344938.

Almost surely, 2^523151320 is an apocalyptic number.

It is an amenable number.

523151320 is an abundant number, since it is smaller than the sum of its proper divisors (715893080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523151320 is a wasteful number, since it uses less digits than its factorization.

523151320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688387 (or 688383 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 523151320 is about 22872.5013935949. The cubic root of 523151320 is about 805.7663163015.

It can be divided in two parts, 52315 and 1320, that added together give a palindrome (53635).

The spelling of 523151320 in words is "five hundred twenty-three million, one hundred fifty-one thousand, three hundred twenty".