2523198722 has 18 divisors (see below), whose sum is σ = 4161438729. Its totient is φ = 1146553320.

The previous prime is 2523198709. The next prime is 2523198731. The reversal of 2523198722 is 2278913252.

It can be written as a sum of positive squares in 2 ways, for example, as 2418770761 + 104427961 = 49181^2 + 10219^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35519.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2523198722.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 779804 + ... + 783032.

Almost surely, 2^2523198722 is an apocalyptic number.

2523198722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2523198722 is a deficient number, since it is larger than the sum of its proper divisors (1638240007).

2523198722 is an frugal number, since it uses more digits than its factorization.

2523198722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482 (or 3242 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 2523198722 is about 50231.4515219300. The cubic root of 2523198722 is about 1361.3939574993.

The spelling of 2523198722 in words is "two billion, five hundred twenty-three million, one hundred ninety-eight thousand, seven hundred twenty-two".