551351331400 has 48 divisors (see below), whose sum is σ = 1282000731300. Its totient is φ = 220521799680.

The previous prime is 551351331397. The next prime is 551351331463. The reversal of 551351331400 is 4133153155.

It can be written as a sum of positive squares in 6 ways, for example, as 133960392036 + 417390939364 = 366006^2 + 646058^2 .

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, 2375736 + ... + 2597464.

Almost surely, 2^551351331400 is an apocalyptic number.

551351331400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551351331400 is an abundant number, since it is smaller than the sum of its proper divisors (730649399900).

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

551351331400 is a wasteful number, since it uses less digits than its factorization.

551351331400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234178 (or 234169 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 551351331400 its reverse (4133153155), we get a palindrome (555484484555).

The spelling of 551351331400 in words is "five hundred fifty-one billion, three hundred fifty-one million, three hundred thirty-one thousand, four hundred".