45542225442 has 32 divisors (see below), whose sum is σ = 104785910784. Its totient is φ = 12925890000.

The previous prime is 45542225419. The next prime is 45542225447. The reversal of 45542225442 is 24452224554.

It is a self number, because there is not a number n which added to its sum of digits gives 45542225442.

It is not an unprimeable number, because it can be changed into a prime (45542225447) 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, 3584184 + ... + 3596867.

It is an arithmetic number, because the mean of its divisors is an integer number (3274559712).

Almost surely, 2^45542225442 is an apocalyptic number.

45542225442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45542225442 is an abundant number, since it is smaller than the sum of its proper divisors (59243685342).

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

45542225442 is a wasteful number, since it uses less digits than its factorization.

45542225442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181214.

The product of its digits is 512000, while the sum is 39.

Adding to 45542225442 its reverse (24452224554), we get a palindrome (69994449996).

The spelling of 45542225442 in words is "forty-five billion, five hundred forty-two million, two hundred twenty-five thousand, four hundred forty-two".