45049955 has 4 divisors (see below), whose sum is σ = 54059952. Its totient is φ = 36039960.

The previous prime is 45049951. The next prime is 45049973. The reversal of 45049955 is 55994054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45049955 - 2² = 45049951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45049951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504991 + ... + 4505000.

It is an arithmetic number, because the mean of its divisors is an integer number (13514988).

Almost surely, 2^45049955 is an apocalyptic number.

45049955 is a deficient number, since it is larger than the sum of its proper divisors (9009997).

45049955 is an equidigital number, since it uses as much as digits as its factorization.

45049955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009996.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 45049955 is about 6711.9263255790. The cubic root of 45049955 is about 355.8209000013.

It can be divided in two parts, 450 and 49955, that added together give a palindrome (50405).

The spelling of 45049955 in words is "forty-five million, forty-nine thousand, nine hundred fifty-five".