5209455400 has 24 divisors (see below), whose sum is σ = 12111984270. Its totient is φ = 2083782080.

The previous prime is 5209455389. The next prime is 5209455413. The reversal of 5209455400 is 45549025.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2418869124 + 2790586276 = 49182^2 + 52826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13023439 + ... + 13023838.

Almost surely, 2^5209455400 is an apocalyptic number.

5209455400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5209455400 is an abundant number, since it is smaller than the sum of its proper divisors (6902528870).

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

5209455400 is a wasteful number, since it uses less digits than its factorization.

5209455400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26047293 (or 26047284 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 5209455400 is about 72176.5571359565. The cubic root of 5209455400 is about 1733.5276565503.

The spelling of 5209455400 in words is "five billion, two hundred nine million, four hundred fifty-five thousand, four hundred".