5321618 has 4 divisors (see below), whose sum is σ = 7982430. Its totient is φ = 2660808.

The previous prime is 5321611. The next prime is 5321621. The reversal of 5321618 is 8161235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5139289 + 182329 = 2267^2 + 427^2 .

It is not an unprimeable number, because it can be changed into a prime (5321611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330403 + ... + 1330406.

Almost surely, 2^5321618 is an apocalyptic number.

5321618 is a deficient number, since it is larger than the sum of its proper divisors (2660812).

5321618 is a wasteful number, since it uses less digits than its factorization.

5321618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660811.

The product of its digits is 1440, while the sum is 26.

The square root of 5321618 is about 2306.8632382523. The cubic root of 5321618 is about 174.5880705832.

The spelling of 5321618 in words is "five million, three hundred twenty-one thousand, six hundred eighteen".