523345425451 has 4 divisors (see below), whose sum is σ = 531156551272. Its totient is φ = 515534299632.

The previous prime is 523345425443. The next prime is 523345425461. The reversal of 523345425451 is 154524543325.

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 523345425451 - 2³ = 523345425443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523345425398 and 523345425407.

It is not an unprimeable number, because it can be changed into a prime (523345425401) 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, 3905562810 + ... + 3905562943.

It is an arithmetic number, because the mean of its divisors is an integer number (132789137818).

Almost surely, 2^523345425451 is an apocalyptic number.

523345425451 is a deficient number, since it is larger than the sum of its proper divisors (7811125821).

523345425451 is an equidigital number, since it uses as much as digits as its factorization.

523345425451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811125820.

The product of its digits is 1440000, while the sum is 43.

Adding to 523345425451 its reverse (154524543325), we get a palindrome (677869968776).

The spelling of 523345425451 in words is "five hundred twenty-three billion, three hundred forty-five million, four hundred twenty-five thousand, four hundred fifty-one".