54981403 has 4 divisors (see below), whose sum is σ = 55010680. Its totient is φ = 54952128.

The previous prime is 54981401. The next prime is 54981439. The reversal of 54981403 is 30418945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30418945 = 5 ⋅6083789.

It is a cyclic number.

It is not a de Polignac number, because 54981403 - 2¹ = 54981401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54981401) 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, 11613 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (13752670).

Almost surely, 2^54981403 is an apocalyptic number.

54981403 is a deficient number, since it is larger than the sum of its proper divisors (29277).

54981403 is a wasteful number, since it uses less digits than its factorization.

54981403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 54981403 is about 7414.9445716067. The cubic root of 54981403 is about 380.2523785127.

The spelling of 54981403 in words is "fifty-four million, nine hundred eighty-one thousand, four hundred three".