85855401 has 12 divisors (see below), whose sum is σ = 125760960. Its totient is φ = 56430360.

The previous prime is 85855387. The next prime is 85855411. The reversal of 85855401 is 10455858.

It is not a de Polignac number, because 85855401 - 2⁵ = 85855369 is a prime.

It is a super-2 number, since 2×85855401² = 14742299761741602, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85855411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66541 + ... + 67818.

It is an arithmetic number, because the mean of its divisors is an integer number (10480080).

Almost surely, 2^85855401 is an apocalyptic number.

It is an amenable number.

85855401 is a deficient number, since it is larger than the sum of its proper divisors (39905559).

85855401 is a wasteful number, since it uses less digits than its factorization.

85855401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134436 (or 134433 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 85855401 is about 9265.8189600272. The cubic root of 85855401 is about 441.1529695936.

The spelling of 85855401 in words is "eighty-five million, eight hundred fifty-five thousand, four hundred one".