5205423400 has 48 divisors (see below), whose sum is σ = 12175158240. Its totient is φ = 2069688000.

The previous prime is 5205423397. The next prime is 5205423481. The reversal of 5205423400 is 43245025.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 44526 + ... + 111325.

It is an arithmetic number, because the mean of its divisors is an integer number (253649130).

Almost surely, 2^5205423400 is an apocalyptic number.

5205423400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5205423400 is an abundant number, since it is smaller than the sum of its proper divisors (6969734840).

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

5205423400 is a wasteful number, since it uses less digits than its factorization.

5205423400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156034 (or 156025 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 5205423400 is about 72148.6202224270. The cubic root of 5205423400 is about 1733.0803041235.

Adding to 5205423400 its reverse (43245025), we get a palindrome (5248668425).

The spelling of 5205423400 in words is "five billion, two hundred five million, four hundred twenty-three thousand, four hundred".