54649445 has 4 divisors (see below), whose sum is σ = 65579340. Its totient is φ = 43719552.

The previous prime is 54649429. The next prime is 54649447. The reversal of 54649445 is 54494645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54494645 = 5 ⋅10898929.

It can be written as a sum of positive squares in 2 ways, for example, as 14984641 + 39664804 = 3871^2 + 6298^2 .

It is a cyclic number.

It is not a de Polignac number, because 54649445 - 2⁴ = 54649429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54649447) 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, 5464940 + ... + 5464949.

It is an arithmetic number, because the mean of its divisors is an integer number (16394835).

Almost surely, 2^54649445 is an apocalyptic number.

It is an amenable number.

54649445 is a deficient number, since it is larger than the sum of its proper divisors (10929895).

54649445 is a wasteful number, since it uses less digits than its factorization.

54649445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929894.

The product of its digits is 345600, while the sum is 41.

The square root of 54649445 is about 7392.5262934940. The cubic root of 54649445 is about 379.4855573262.

The spelling of 54649445 in words is "fifty-four million, six hundred forty-nine thousand, four hundred forty-five".