53398618 has 16 divisors (see below), whose sum is σ = 98582400. Its totient is φ = 21124656.

The previous prime is 53398589. The next prime is 53398619. The reversal of 53398618 is 81689335.

It is not an unprimeable number, because it can be changed into a prime (53398619) 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, 146518 + ... + 146881.

It is an arithmetic number, because the mean of its divisors is an integer number (6161400).

Almost surely, 2^53398618 is an apocalyptic number.

53398618 is a deficient number, since it is larger than the sum of its proper divisors (45183782).

53398618 is a wasteful number, since it uses less digits than its factorization.

53398618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293421.

The product of its digits is 155520, while the sum is 43.

The square root of 53398618 is about 7307.4358019760. The cubic root of 53398618 is about 376.5679369853.

The spelling of 53398618 in words is "fifty-three million, three hundred ninety-eight thousand, six hundred eighteen".