551042242400 has 288 divisors, whose sum is σ = 1463628196800. Its totient is φ = 201378078720.

The previous prime is 551042242391. The next prime is 551042242409. The reversal of 551042242400 is 4242240155.

It is an interprime number because it is at equal distance from previous prime (551042242391) and next prime (551042242409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551042242409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 569846717 + ... + 569847683.

It is an arithmetic number, because the mean of its divisors is an integer number (5082042350).

Almost surely, 2^551042242400 is an apocalyptic number.

551042242400 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 551042242400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731814098400).

551042242400 is an abundant number, since it is smaller than the sum of its proper divisors (912585954400).

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

551042242400 is a wasteful number, since it uses less digits than its factorization.

551042242400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 551042242400 its reverse (4242240155), we get a palindrome (555284482555).

The spelling of 551042242400 in words is "five hundred fifty-one billion, forty-two million, two hundred forty-two thousand, four hundred".