523020153 has 4 divisors (see below), whose sum is σ = 697360208. Its totient is φ = 348680100.

The previous prime is 523020139. The next prime is 523020167. The reversal of 523020153 is 351020325.

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 (523020139) and next prime (523020167).

It is not a de Polignac number, because 523020153 - 2⁹ = 523019641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523020193) 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, 87170023 + ... + 87170028.

It is an arithmetic number, because the mean of its divisors is an integer number (174340052).

Almost surely, 2^523020153 is an apocalyptic number.

It is an amenable number.

523020153 is a deficient number, since it is larger than the sum of its proper divisors (174340055).

523020153 is a wasteful number, since it uses less digits than its factorization.

523020153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174340054.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 523020153 is about 22869.6338623949. The cubic root of 523020153 is about 805.6989688116.

Adding to 523020153 its reverse (351020325), we get a palindrome (874040478).

The spelling of 523020153 in words is "five hundred twenty-three million, twenty thousand, one hundred fifty-three".