278258053 has 2 divisors, whose sum is σ = 278258054. Its totient is φ = 278258052.

The previous prime is 278258039. The next prime is 278258069. The reversal of 278258053 is 350852872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267715044 + 10543009 = 16362^2 + 3247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-278258053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 278257997 and 278258015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278258083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139129026 + 139129027.

It is an arithmetic number, because the mean of its divisors is an integer number (139129027).

Almost surely, 2^278258053 is an apocalyptic number.

It is an amenable number.

278258053 is a deficient number, since it is larger than the sum of its proper divisors (1).

278258053 is an equidigital number, since it uses as much as digits as its factorization.

278258053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 278258053 is about 16681.0687007757. The cubic root of 278258053 is about 652.8537664632.

The spelling of 278258053 in words is "two hundred seventy-eight million, two hundred fifty-eight thousand, fifty-three".