523420001 has 8 divisors (see below), whose sum is σ = 571405800. Its totient is φ = 476537472.

The previous prime is 523419991. The next prime is 523420003. The reversal of 523420001 is 100024325.

It can be written as a sum of positive squares in 4 ways, for example, as 3534400 + 519885601 = 1880^2 + 22801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523420001 - 2⁶ = 523419937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523420003) 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, 274826 + ... + 276723.

It is an arithmetic number, because the mean of its divisors is an integer number (71425725).

Almost surely, 2^523420001 is an apocalyptic number.

It is an amenable number.

523420001 is a deficient number, since it is larger than the sum of its proper divisors (47985799).

523420001 is a wasteful number, since it uses less digits than its factorization.

523420001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551635.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 523420001 is about 22878.3740899567. The cubic root of 523420001 is about 805.9042350001.

Adding to 523420001 its reverse (100024325), we get a palindrome (623444326).

The spelling of 523420001 in words is "five hundred twenty-three million, four hundred twenty thousand, one".