85519039 has 2 divisors, whose sum is σ = 85519040. Its totient is φ = 85519038.

The previous prime is 85519009. The next prime is 85519067. The reversal of 85519039 is 93091558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85519039 - 2⁷ = 85518911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85518992 and 85519010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85519009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42759519 + 42759520.

It is an arithmetic number, because the mean of its divisors is an integer number (42759520).

Almost surely, 2^85519039 is an apocalyptic number.

85519039 is a deficient number, since it is larger than the sum of its proper divisors (1).

85519039 is an equidigital number, since it uses as much as digits as its factorization.

85519039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 85519039 is about 9247.6504583597. The cubic root of 85519039 is about 440.5761031467.

The spelling of 85519039 in words is "eighty-five million, five hundred nineteen thousand, thirty-nine".