54040253 has 4 divisors (see below), whose sum is σ = 55903740. Its totient is φ = 52176768.

The previous prime is 54040249. The next prime is 54040267. The reversal of 54040253 is 35204045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38962564 + 15077689 = 6242^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 54040253 - 2² = 54040249 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 (54040213) 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, 931700 + ... + 931757.

It is an arithmetic number, because the mean of its divisors is an integer number (13975935).

Almost surely, 2^54040253 is an apocalyptic number.

It is an amenable number.

54040253 is a deficient number, since it is larger than the sum of its proper divisors (1863487).

54040253 is a wasteful number, since it uses less digits than its factorization.

54040253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863486.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 54040253 is about 7351.2075878729. The cubic root of 54040253 is about 378.0702094234.

Adding to 54040253 its reverse (35204045), we get a palindrome (89244298).

The spelling of 54040253 in words is "fifty-four million, forty thousand, two hundred fifty-three".