54852139 has 2 divisors, whose sum is σ = 54852140. Its totient is φ = 54852138.

The previous prime is 54852103. The next prime is 54852143. The reversal of 54852139 is 93125845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54852139 - 2⁷ = 54852011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54852098 and 54852107.

It is not a weakly prime, because it can be changed into another prime (54852439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27426069 + 27426070.

It is an arithmetic number, because the mean of its divisors is an integer number (27426070).

Almost surely, 2^54852139 is an apocalyptic number.

54852139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54852139 is an equidigital number, since it uses as much as digits as its factorization.

54852139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 54852139 is about 7406.2229915119. Note that the first 3 decimals coincide. The cubic root of 54852139 is about 379.9541472837.

The spelling of 54852139 in words is "fifty-four million, eight hundred fifty-two thousand, one hundred thirty-nine".