523155140553 has 16 divisors (see below), whose sum is σ = 704123456256. Its totient is φ = 345479054160.

The previous prime is 523155140537. The next prime is 523155140597. The reversal of 523155140553 is 355041551325.

It is not a de Polignac number, because 523155140553 - 2⁴ = 523155140537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523155140953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3758938 + ... + 3895628.

It is an arithmetic number, because the mean of its divisors is an integer number (44007716016).

Almost surely, 2^523155140553 is an apocalyptic number.

It is an amenable number.

523155140553 is a deficient number, since it is larger than the sum of its proper divisors (180968315703).

523155140553 is a wasteful number, since it uses less digits than its factorization.

523155140553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148724.

The product of its (nonzero) digits is 225000, while the sum is 39.

Adding to 523155140553 its reverse (355041551325), we get a palindrome (878196691878).

The spelling of 523155140553 in words is "five hundred twenty-three billion, one hundred fifty-five million, one hundred forty thousand, five hundred fifty-three".