5122543400 has 48 divisors (see below), whose sum is σ = 12826067100. Its totient is φ = 1891399680.

The previous prime is 5122543397. The next prime is 5122543423. The reversal of 5122543400 is 43452215.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2014034884 + 3108508516 = 44878^2 + 55754^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 5122543400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982505 + ... + 987704.

Almost surely, 2^5122543400 is an apocalyptic number.

5122543400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5122543400 is an abundant number, since it is smaller than the sum of its proper divisors (7703523700).

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

5122543400 is a wasteful number, since it uses less digits than its factorization.

5122543400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970238 (or 1970229 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5122543400 is about 71571.9456211720. The cubic root of 5122543400 is about 1723.8331000514.

Adding to 5122543400 its reverse (43452215), we get a palindrome (5165995615).

The spelling of 5122543400 in words is "five billion, one hundred twenty-two million, five hundred forty-three thousand, four hundred".