85455401 has 2 divisors, whose sum is σ = 85455402. Its totient is φ = 85455400.

The previous prime is 85455371. The next prime is 85455473. The reversal of 85455401 is 10455458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46717225 + 38738176 = 6835^2 + 6224^2 .

It is a cyclic number.

It is not a de Polignac number, because 85455401 - 2²² = 81261097 is a prime.

It is not a weakly prime, because it can be changed into another prime (85455101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727700 + 42727701.

It is an arithmetic number, because the mean of its divisors is an integer number (42727701).

Almost surely, 2^85455401 is an apocalyptic number.

It is an amenable number.

85455401 is a deficient number, since it is larger than the sum of its proper divisors (1).

85455401 is an equidigital number, since it uses as much as digits as its factorization.

85455401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 85455401 is about 9244.2090521580. The cubic root of 85455401 is about 440.4667928309.

The spelling of 85455401 in words is "eighty-five million, four hundred fifty-five thousand, four hundred one".