85452401 has 4 divisors (see below), whose sum is σ = 86482032. Its totient is φ = 84422772.

The previous prime is 85452379. The next prime is 85452427. The reversal of 85452401 is 10425458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10425458 = 2 ⋅5212729.

It is a cyclic number.

It is not a de Polignac number, because 85452401 - 2²² = 81258097 is a prime.

It is a super-2 number, since 2×85452401² = 14604225673329602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85452701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514691 + ... + 514856.

It is an arithmetic number, because the mean of its divisors is an integer number (21620508).

Almost surely, 2^85452401 is an apocalyptic number.

It is an amenable number.

85452401 is a deficient number, since it is larger than the sum of its proper divisors (1029631).

85452401 is a wasteful number, since it uses less digits than its factorization.

85452401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029630.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 85452401 is about 9244.0467869867. The cubic root of 85452401 is about 440.4616384235.

Adding to 85452401 its reverse (10425458), we get a palindrome (95877859).

The spelling of 85452401 in words is "eighty-five million, four hundred fifty-two thousand, four hundred one".