54557749 has 4 divisors (see below), whose sum is σ = 55326240. Its totient is φ = 53789260.

The previous prime is 54557707. The next prime is 54557753. The reversal of 54557749 is 94775545.

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 54557749 - 2¹⁷ = 54426677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54557699 and 54557708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54557249) 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, 384139 + ... + 384280.

It is an arithmetic number, because the mean of its divisors is an integer number (13831560).

Almost surely, 2^54557749 is an apocalyptic number.

It is an amenable number.

54557749 is a deficient number, since it is larger than the sum of its proper divisors (768491).

54557749 is an equidigital number, since it uses as much as digits as its factorization.

54557749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768490.

The product of its digits is 882000, while the sum is 46.

The square root of 54557749 is about 7386.3217503707. The cubic root of 54557749 is about 379.2731929378.

The spelling of 54557749 in words is "fifty-four million, five hundred fifty-seven thousand, seven hundred forty-nine".