551130250 has 64 divisors (see below), whose sum is σ = 1136633472. Its totient is φ = 198432000.

The previous prime is 551130247. The next prime is 551130257. The reversal of 551130250 is 52031155.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (551130257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293314 + ... + 295186.

It is an arithmetic number, because the mean of its divisors is an integer number (17759898).

Almost surely, 2^551130250 is an apocalyptic number.

551130250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551130250 is an abundant number, since it is smaller than the sum of its proper divisors (585503222).

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

551130250 is a wasteful number, since it uses less digits than its factorization.

551130250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1998 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 551130250 is about 23476.1634429478. The cubic root of 551130250 is about 819.8821216633.

The spelling of 551130250 in words is "five hundred fifty-one million, one hundred thirty thousand, two hundred fifty".