2523173136 has 80 divisors (see below), whose sum is σ = 7118115840. Its totient is φ = 763807360.

The previous prime is 2523173119. The next prime is 2523173137. The reversal of 2523173136 is 6313713252.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2523173097 and 2523173106.

It is not an unprimeable number, because it can be changed into a prime (2523173137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694621 + ... + 698243.

It is an arithmetic number, because the mean of its divisors is an integer number (88976448).

Almost surely, 2^2523173136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2523173136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3559057920).

2523173136 is an abundant number, since it is smaller than the sum of its proper divisors (4594942704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2523173136 is a wasteful number, since it uses less digits than its factorization.

2523173136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964 (or 4958 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 2523173136 is about 50231.1968402108. The cubic root of 2523173136 is about 1361.3893558346.

Adding to 2523173136 its reverse (6313713252), we get a palindrome (8836886388).

The spelling of 2523173136 in words is "two billion, five hundred twenty-three million, one hundred seventy-three thousand, one hundred thirty-six".