551507000 has 128 divisors (see below), whose sum is σ = 1420735680. Its totient is φ = 198720000.

The previous prime is 551506993. The next prime is 551507027. The reversal of 551507000 is 705155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1990862 + ... + 1991138.

Almost surely, 2^551507000 is an apocalyptic number.

551507000 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 551507000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710367840).

551507000 is an abundant number, since it is smaller than the sum of its proper divisors (869228680).

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

551507000 is a wasteful number, since it uses less digits than its factorization.

551507000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 551507000 is about 23484.1861685688. The cubic root of 551507000 is about 820.0689016067.

The spelling of 551507000 in words is "five hundred fifty-one million, five hundred seven thousand".