551001150 has 192 divisors, whose sum is σ = 1749888000. Its totient is φ = 124882560.

The previous prime is 551001149. The next prime is 551001181. The reversal of 551001150 is 51100155.

551001150 is a `hidden beast` number, since 5 + 510 + 0 + 1 + 150 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1880404 + ... + 1880696.

It is an arithmetic number, because the mean of its divisors is an integer number (9114000).

Almost surely, 2^551001150 is an apocalyptic number.

551001150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 551001150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874944000).

551001150 is an abundant number, since it is smaller than the sum of its proper divisors (1198886850).

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

551001150 is a wasteful number, since it uses less digits than its factorization.

551001150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 551001150 is about 23473.4136844218. The cubic root of 551001150 is about 819.8180986562.

The spelling of 551001150 in words is "five hundred fifty-one million, one thousand, one hundred fifty".