523066157 has 4 divisors (see below), whose sum is σ = 523920060. Its totient is φ = 522212256.

The previous prime is 523066123. The next prime is 523066213. The reversal of 523066157 is 751660325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 229492201 + 293573956 = 15149^2 + 17134^2 .

It is a cyclic number.

It is not a de Polignac number, because 523066157 - 2¹⁰ = 523065133 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 (523066057) 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, 426032 + ... + 427257.

It is an arithmetic number, because the mean of its divisors is an integer number (130980015).

Almost surely, 2^523066157 is an apocalyptic number.

It is an amenable number.

523066157 is a deficient number, since it is larger than the sum of its proper divisors (853903).

523066157 is an equidigital number, since it uses as much as digits as its factorization.

523066157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853902.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 523066157 is about 22870.6396281346. The cubic root of 523066157 is about 805.7225907750.

The spelling of 523066157 in words is "five hundred twenty-three million, sixty-six thousand, one hundred fifty-seven".