52581019 has 2 divisors, whose sum is σ = 52581020. Its totient is φ = 52581018.

The previous prime is 52581007. The next prime is 52581041. The reversal of 52581019 is 91018525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52581019 - 2⁵ = 52580987 is a prime.

It is a super-2 number, since 2×52581019² = 5529527118156722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52581079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26290509 + 26290510.

It is an arithmetic number, because the mean of its divisors is an integer number (26290510).

Almost surely, 2^52581019 is an apocalyptic number.

52581019 is a deficient number, since it is larger than the sum of its proper divisors (1).

52581019 is an equidigital number, since it uses as much as digits as its factorization.

52581019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 52581019 is about 7251.2770599392. The cubic root of 52581019 is about 374.6361365380.

The spelling of 52581019 in words is "fifty-two million, five hundred eighty-one thousand, nineteen".