85553023 has 2 divisors, whose sum is σ = 85553024. Its totient is φ = 85553022.

The previous prime is 85552913. The next prime is 85553033. The reversal of 85553023 is 32035558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85553023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85553033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42776511 + 42776512.

It is an arithmetic number, because the mean of its divisors is an integer number (42776512).

Almost surely, 2^85553023 is an apocalyptic number.

85553023 is a deficient number, since it is larger than the sum of its proper divisors (1).

85553023 is an equidigital number, since it uses as much as digits as its factorization.

85553023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 85553023 is about 9249.4877155440. The cubic root of 85553023 is about 440.6344548916.

The spelling of 85553023 in words is "eighty-five million, five hundred fifty-three thousand, twenty-three".