45550949 has 4 divisors (see below), whose sum is σ = 45650220. Its totient is φ = 45451680.

The previous prime is 45550933. The next prime is 45550979. The reversal of 45550949 is 94905554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94905554 = 2 ⋅47452777.

It can be written as a sum of positive squares in 2 ways, for example, as 6400900 + 39150049 = 2530^2 + 6257^2 .

It is a cyclic number.

It is not a de Polignac number, because 45550949 - 2⁴ = 45550933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45550979) 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, 48944 + ... + 49865.

It is an arithmetic number, because the mean of its divisors is an integer number (11412555).

Almost surely, 2^45550949 is an apocalyptic number.

It is an amenable number.

45550949 is a deficient number, since it is larger than the sum of its proper divisors (99271).

45550949 is an equidigital number, since it uses as much as digits as its factorization.

45550949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99270.

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

The square root of 45550949 is about 6749.1443161337. The cubic root of 45550949 is about 357.1350513113.

The spelling of 45550949 in words is "forty-five million, five hundred fifty thousand, nine hundred forty-nine".