553143400 has 48 divisors (see below), whose sum is σ = 1315987200. Its totient is φ = 216108480.

The previous prime is 553143397. The next prime is 553143401. The reversal of 553143400 is 4341355.

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

It is not an unprimeable number, because it can be changed into a prime (553143401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23560 + ... + 40759.

It is an arithmetic number, because the mean of its divisors is an integer number (27416400).

Almost surely, 2^553143400 is an apocalyptic number.

553143400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

553143400 is an abundant number, since it is smaller than the sum of its proper divisors (762843800).

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

553143400 is a wasteful number, since it uses less digits than its factorization.

553143400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64378 (or 64369 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 553143400 is about 23519.0008291169. Note that the first 3 decimals coincide. The cubic root of 553143400 is about 820.8791878896.

Adding to 553143400 its reverse (4341355), we get a palindrome (557484755).

The spelling of 553143400 in words is "five hundred fifty-three million, one hundred forty-three thousand, four hundred".