551054100 has 144 divisors (see below), whose sum is σ = 1639895040. Its totient is φ = 142819200.

The previous prime is 551054071. The next prime is 551054107. The reversal of 551054100 is 1450155.

It is a super-2 number, since 2×551054100² = 607321242253620000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551054107) 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, 2885005 + ... + 2885195.

It is an arithmetic number, because the mean of its divisors is an integer number (11388160).

Almost surely, 2^551054100 is an apocalyptic number.

551054100 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 551054100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819947520).

551054100 is an abundant number, since it is smaller than the sum of its proper divisors (1088840940).

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

551054100 is a wasteful number, since it uses less digits than its factorization.

551054100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 551054100 is about 23474.5415290693. The cubic root of 551054100 is about 819.8443587211.

The spelling of 551054100 in words is "five hundred fifty-one million, fifty-four thousand, one hundred".