2575172124 has 72 divisors (see below), whose sum is σ = 7482515040. Its totient is φ = 731498112.

The previous prime is 2575172123. The next prime is 2575172129. The reversal of 2575172124 is 4212715752.

2575172124 is a `hidden beast` number, since 2 + 575 + 1 + 72 + 12 + 4 = 666.

It is a super-2 number, since 2×2575172124² = 13263022936453342752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2575172123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14062 + ... + 73130.

It is an arithmetic number, because the mean of its divisors is an integer number (103923820).

Almost surely, 2^2575172124 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 2575172124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3741257520).

2575172124 is an abundant number, since it is smaller than the sum of its proper divisors (4907342916).

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

2575172124 is a wasteful number, since it uses less digits than its factorization.

2575172124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59259 (or 59254 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2575172124 is about 50746.1537852870. The cubic root of 2575172124 is about 1370.6779325418.

Adding to 2575172124 its reverse (4212715752), we get a palindrome (6787887876).

The spelling of 2575172124 in words is "two billion, five hundred seventy-five million, one hundred seventy-two thousand, one hundred twenty-four".