551285998 has 8 divisors (see below), whose sum is σ = 855443880. Its totient is φ = 266138040.

The previous prime is 551285957. The next prime is 551286023. The reversal of 551285998 is 899582155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752408 + ... + 4752523.

It is an arithmetic number, because the mean of its divisors is an integer number (106930485).

Almost surely, 2^551285998 is an apocalyptic number.

551285998 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

551285998 is a deficient number, since it is larger than the sum of its proper divisors (304157882).

551285998 is a wasteful number, since it uses less digits than its factorization.

551285998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504962.

The product of its digits is 1296000, while the sum is 52.

The square root of 551285998 is about 23479.4803605191. The cubic root of 551285998 is about 819.9593465866.

The spelling of 551285998 in words is "five hundred fifty-one million, two hundred eighty-five thousand, nine hundred ninety-eight".