54990049 has 4 divisors (see below), whose sum is σ = 55810864. Its totient is φ = 54169236.

The previous prime is 54990043. The next prime is 54990059. The reversal of 54990049 is 94009945.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94009945 = 5 ⋅18801989.

It is a cyclic number.

It is not a de Polignac number, because 54990049 - 2³ = 54990041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54989993 and 54990020.

It is not an unprimeable number, because it can be changed into a prime (54990041) 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, 410307 + ... + 410440.

It is an arithmetic number, because the mean of its divisors is an integer number (13952716).

Almost surely, 2^54990049 is an apocalyptic number.

It is an amenable number.

54990049 is a deficient number, since it is larger than the sum of its proper divisors (820815).

54990049 is an equidigital number, since it uses as much as digits as its factorization.

54990049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820814.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 54990049 is about 7415.5275604639. The cubic root of 54990049 is about 380.2723094322.

The spelling of 54990049 in words is "fifty-four million, nine hundred ninety thousand, forty-nine".