551362400 has 72 divisors (see below), whose sum is σ = 1353366504. Its totient is φ = 219340800.

The previous prime is 551362367. The next prime is 551362433. The reversal of 551362400 is 4263155.

It is an interprime number because it is at equal distance from previous prime (551362367) and next prime (551362433).

It is a super-2 number, since 2×551362400² = 608000992267520000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551362400.

It is a congruent number.

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, 152615 + ... + 156185.

It is an arithmetic number, because the mean of its divisors is an integer number (18796757).

Almost surely, 2^551362400 is an apocalyptic number.

551362400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551362400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676683252).

551362400 is an abundant number, since it is smaller than the sum of its proper divisors (802004104).

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

551362400 is a wasteful number, since it uses less digits than its factorization.

551362400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 551362400 is about 23481.1072992736. The cubic root of 551362400 is about 819.9972238653.

The spelling of 551362400 in words is "five hundred fifty-one million, three hundred sixty-two thousand, four hundred".