85553006837 has 2 divisors, whose sum is σ = 85553006838. Its totient is φ = 85553006836.

The previous prime is 85553006779. The next prime is 85553006863. The reversal of 85553006837 is 73860035558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70795373476 + 14757633361 = 266074^2 + 121481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85553006837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85553506837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42776503418 + 42776503419.

It is an arithmetic number, because the mean of its divisors is an integer number (42776503419).

Almost surely, 2^85553006837 is an apocalyptic number.

It is an amenable number.

85553006837 is a deficient number, since it is larger than the sum of its proper divisors (1).

85553006837 is an equidigital number, since it uses as much as digits as its factorization.

85553006837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 85553006837 in words is "eighty-five billion, five hundred fifty-three million, six thousand, eight hundred thirty-seven".