52681019 has 2 divisors, whose sum is σ = 52681020. Its totient is φ = 52681018.

The previous prime is 52681009. The next prime is 52681033. The reversal of 52681019 is 91018625.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52681019 is a prime.

It is a super-2 number, since 2×52681019² = 5550579525756722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52681009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26340509 + 26340510.

It is an arithmetic number, because the mean of its divisors is an integer number (26340510).

Almost surely, 2^52681019 is an apocalyptic number.

52681019 is a deficient number, since it is larger than the sum of its proper divisors (1).

52681019 is an equidigital number, since it uses as much as digits as its factorization.

52681019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 52681019 is about 7258.1691217552. The cubic root of 52681019 is about 374.8734838397.

The spelling of 52681019 in words is "fifty-two million, six hundred eighty-one thousand, nineteen".