54251903 has 4 divisors (see below), whose sum is σ = 54458448. Its totient is φ = 54045360.

The previous prime is 54251887. The next prime is 54251909. The reversal of 54251903 is 30915245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30915245 = 5 ⋅6183049.

It is a cyclic number.

It is not a de Polignac number, because 54251903 - 2⁴ = 54251887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54251909) 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, 102878 + ... + 103403.

It is an arithmetic number, because the mean of its divisors is an integer number (13614612).

Almost surely, 2^54251903 is an apocalyptic number.

54251903 is a deficient number, since it is larger than the sum of its proper divisors (206545).

54251903 is a wasteful number, since it uses less digits than its factorization.

54251903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206544.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 54251903 is about 7365.5891142528. The cubic root of 54251903 is about 378.5631402617.

The spelling of 54251903 in words is "fifty-four million, two hundred fifty-one thousand, nine hundred three".