54403649 has 4 divisors (see below), whose sum is σ = 54707760. Its totient is φ = 54099540.

The previous prime is 54403633. The next prime is 54403651. The reversal of 54403649 is 94630445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54403649 - 2⁴ = 54403633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54403249) 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, 151787 + ... + 152144.

It is an arithmetic number, because the mean of its divisors is an integer number (13676940).

Almost surely, 2^54403649 is an apocalyptic number.

It is an amenable number.

54403649 is a deficient number, since it is larger than the sum of its proper divisors (304111).

54403649 is a wasteful number, since it uses less digits than its factorization.

54403649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304110.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 54403649 is about 7375.8829301989. The cubic root of 54403649 is about 378.9157666992.

The spelling of 54403649 in words is "fifty-four million, four hundred three thousand, six hundred forty-nine".