54852781 has 4 divisors (see below), whose sum is σ = 55547200. Its totient is φ = 54158364.

The previous prime is 54852779. The next prime is 54852851. The reversal of 54852781 is 18725845.

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 54852781 - 2¹ = 54852779 is a prime.

It is a super-2 number, since 2×54852781² = 6017655166867922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54852701) 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, 347091 + ... + 347248.

It is an arithmetic number, because the mean of its divisors is an integer number (13886800).

Almost surely, 2^54852781 is an apocalyptic number.

It is an amenable number.

54852781 is a deficient number, since it is larger than the sum of its proper divisors (694419).

54852781 is an equidigital number, since it uses as much as digits as its factorization.

54852781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694418.

The product of its digits is 89600, while the sum is 40.

The square root of 54852781 is about 7406.2663333153. The cubic root of 54852781 is about 379.9556296300.

The spelling of 54852781 in words is "fifty-four million, eight hundred fifty-two thousand, seven hundred eighty-one".