155525231323 has 16 divisors (see below), whose sum is σ = 205307564544. Its totient is φ = 114059756160.

The previous prime is 155525231311. The next prime is 155525231341. The reversal of 155525231323 is 323132525551.

It is not a de Polignac number, because 155525231323 - 2³³ = 146935296731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155525231723) 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, 59404815 + ... + 59407432.

It is an arithmetic number, because the mean of its divisors is an integer number (12831722784).

Almost surely, 2^155525231323 is an apocalyptic number.

155525231323 is a deficient number, since it is larger than the sum of its proper divisors (49782333221).

155525231323 is a wasteful number, since it uses less digits than its factorization.

155525231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118812282.

The product of its digits is 135000, while the sum is 37.

Adding to 155525231323 its reverse (323132525551), we get a palindrome (478657756874).

The spelling of 155525231323 in words is "one hundred fifty-five billion, five hundred twenty-five million, two hundred thirty-one thousand, three hundred twenty-three".