85535501 has 2 divisors, whose sum is σ = 85535502. Its totient is φ = 85535500.

The previous prime is 85535447. The next prime is 85535503. The reversal of 85535501 is 10553558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45832900 + 39702601 = 6770^2 + 6301^2 .

It is a cyclic number.

It is not a de Polignac number, because 85535501 - 2¹⁴ = 85519117 is a prime.

Together with 85535503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85535503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42767750 + 42767751.

It is an arithmetic number, because the mean of its divisors is an integer number (42767751).

Almost surely, 2^85535501 is an apocalyptic number.

It is an amenable number.

85535501 is a deficient number, since it is larger than the sum of its proper divisors (1).

85535501 is an equidigital number, since it uses as much as digits as its factorization.

85535501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 85535501 is about 9248.5404794486. The cubic root of 85535501 is about 440.6043709203.

The spelling of 85535501 in words is "eighty-five million, five hundred thirty-five thousand, five hundred one".