552297018 has 64 divisors (see below), whose sum is σ = 1362880512. Its totient is φ = 145298880.

The previous prime is 552297017. The next prime is 552297041. The reversal of 552297018 is 810792255.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (552297017) 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, 273633 + ... + 275643.

It is an arithmetic number, because the mean of its divisors is an integer number (21295008).

Almost surely, 2^552297018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552297018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681440256).

552297018 is an abundant number, since it is smaller than the sum of its proper divisors (810583494).

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

552297018 is a wasteful number, since it uses less digits than its factorization.

552297018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 552297018 is about 23501.0003616867. Note that the first 3 decimals coincide. The cubic root of 552297018 is about 820.4602898623.

The spelling of 552297018 in words is "five hundred fifty-two million, two hundred ninety-seven thousand, eighteen".