52641618 has 16 divisors (see below), whose sum is σ = 109861056. Its totient is φ = 16784240.

The previous prime is 52641607. The next prime is 52641619. The reversal of 52641618 is 81614625.

It is a super-2 number, since 2×52641618² = 5542279891315848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (52641619) 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, 190593 + ... + 190868.

It is an arithmetic number, because the mean of its divisors is an integer number (6866316).

Almost surely, 2^52641618 is an apocalyptic number.

52641618 is an abundant number, since it is smaller than the sum of its proper divisors (57219438).

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

52641618 is a wasteful number, since it uses less digits than its factorization.

52641618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381489.

The product of its digits is 11520, while the sum is 33.

The square root of 52641618 is about 7255.4543620644. The cubic root of 52641618 is about 374.7800025171.

The spelling of 52641618 in words is "fifty-two million, six hundred forty-one thousand, six hundred eighteen".