49455618 has 32 divisors (see below), whose sum is σ = 106220160. Its totient is φ = 15294720.

The previous prime is 49455617. The next prime is 49455647. The reversal of 49455618 is 81655494.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49455618.

It is not an unprimeable number, because it can be changed into a prime (49455611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3828 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (3319380).

Almost surely, 2^49455618 is an apocalyptic number.

49455618 is an abundant number, since it is smaller than the sum of its proper divisors (56764542).

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

49455618 is a wasteful number, since it uses less digits than its factorization.

49455618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922.

The product of its digits is 172800, while the sum is 42.

The square root of 49455618 is about 7032.4688410259. The cubic root of 49455618 is about 367.0612543680.

The spelling of 49455618 in words is "forty-nine million, four hundred fifty-five thousand, six hundred eighteen".