45552140 has 12 divisors (see below), whose sum is σ = 95659536. Its totient is φ = 18220848.

The previous prime is 45552103. The next prime is 45552149. The reversal of 45552140 is 4125554.

It is not an unprimeable number, because it can be changed into a prime (45552149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138784 + ... + 1138823.

It is an arithmetic number, because the mean of its divisors is an integer number (7971628).

Almost surely, 2^45552140 is an apocalyptic number.

It is an amenable number.

45552140 is an abundant number, since it is smaller than the sum of its proper divisors (50107396).

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

45552140 is a wasteful number, since it uses less digits than its factorization.

45552140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277616 (or 2277614 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45552140 is about 6749.2325489644. The cubic root of 45552140 is about 357.1381639002.

Adding to 45552140 its reverse (4125554), we get a palindrome (49677694).

The spelling of 45552140 in words is "forty-five million, five hundred fifty-two thousand, one hundred forty".