550002981 has 32 divisors (see below), whose sum is σ = 821703168. Its totient is φ = 324354240.

The previous prime is 550002949. The next prime is 550002983. The reversal of 550002981 is 189200055.

It is not a de Polignac number, because 550002981 - 2⁵ = 550002949 is a prime.

It is a super-2 number, since 2×550002981² = 605006558217772722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550002983) 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, 491835 + ... + 492951.

It is an arithmetic number, because the mean of its divisors is an integer number (25678224).

Almost surely, 2^550002981 is an apocalyptic number.

It is an amenable number.

550002981 is a deficient number, since it is larger than the sum of its proper divisors (271700187).

550002981 is a wasteful number, since it uses less digits than its factorization.

550002981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 550002981 is about 23452.1423541646. The cubic root of 550002981 is about 819.3227508384.

The spelling of 550002981 in words is "five hundred fifty million, two thousand, nine hundred eighty-one".