523235601949 has 4 divisors (see below), whose sum is σ = 523331245440. Its totient is φ = 523139958460.

The previous prime is 523235601937. The next prime is 523235601961. The reversal of 523235601949 is 949106532325.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (523235601937) and next prime (523235601961).

It is a cyclic number.

It is not a de Polignac number, because 523235601949 - 2¹³ = 523235593757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523235601979) 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, 47813539 + ... + 47824480.

It is an arithmetic number, because the mean of its divisors is an integer number (130832811360).

Almost surely, 2^523235601949 is an apocalyptic number.

It is an amenable number.

523235601949 is a deficient number, since it is larger than the sum of its proper divisors (95643491).

523235601949 is an equidigital number, since it uses as much as digits as its factorization.

523235601949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95643490.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 523235601949 in words is "five hundred twenty-three billion, two hundred thirty-five million, six hundred one thousand, nine hundred forty-nine".