551074985 has 8 divisors (see below), whose sum is σ = 661654656. Its totient is φ = 440616880.

The previous prime is 551074981. The next prime is 551075017. The reversal of 551074985 is 589470155.

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

It is not a de Polignac number, because 551074985 - 2² = 551074981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551074981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20099 + ... + 38808.

It is an arithmetic number, because the mean of its divisors is an integer number (82706832).

Almost surely, 2^551074985 is an apocalyptic number.

It is an amenable number.

551074985 is a deficient number, since it is larger than the sum of its proper divisors (110579671).

551074985 is a wasteful number, since it uses less digits than its factorization.

551074985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60783.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 551074985 is about 23474.9863684731. The cubic root of 551074985 is about 819.8547159819.

The spelling of 551074985 in words is "five hundred fifty-one million, seventy-four thousand, nine hundred eighty-five".