523125407722 has 4 divisors (see below), whose sum is σ = 784688111586. Its totient is φ = 261562703860.

The previous prime is 523125407687. The next prime is 523125407723. The reversal of 523125407722 is 227704521325.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 477175626841 + 45949780881 = 690779^2 + 214359^2 .

It is not an unprimeable number, because it can be changed into a prime (523125407723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130781351929 + ... + 130781351932.

Almost surely, 2^523125407722 is an apocalyptic number.

523125407722 is a deficient number, since it is larger than the sum of its proper divisors (261562703864).

523125407722 is a wasteful number, since it uses less digits than its factorization.

523125407722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261562703863.

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 523125407722 in words is "five hundred twenty-three billion, one hundred twenty-five million, four hundred seven thousand, seven hundred twenty-two".