52278133 has 2 divisors, whose sum is σ = 52278134. Its totient is φ = 52278132.

The previous prime is 52278119. The next prime is 52278217. The reversal of 52278133 is 33187225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49660209 + 2617924 = 7047^2 + 1618^2 .

It is a cyclic number.

It is not a de Polignac number, because 52278133 - 2¹³ = 52269941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52278095 and 52278104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52278833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26139066 + 26139067.

It is an arithmetic number, because the mean of its divisors is an integer number (26139067).

Almost surely, 2^52278133 is an apocalyptic number.

It is an amenable number.

52278133 is a deficient number, since it is larger than the sum of its proper divisors (1).

52278133 is an equidigital number, since it uses as much as digits as its factorization.

52278133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 52278133 is about 7230.3618858256. The cubic root of 52278133 is about 373.9154035740.

The spelling of 52278133 in words is "fifty-two million, two hundred seventy-eight thousand, one hundred thirty-three".