53809085 has 8 divisors (see below), whose sum is σ = 70441056. Its totient is φ = 39133840.

The previous prime is 53809061. The next prime is 53809109. The reversal of 53809085 is 58090835.

It is an interprime number because it is at equal distance from previous prime (53809061) and next prime (53809109).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53809085 - 2⁸ = 53808829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489119 + ... + 489228.

It is an arithmetic number, because the mean of its divisors is an integer number (8805132).

Almost surely, 2^53809085 is an apocalyptic number.

53809085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53809085 is a deficient number, since it is larger than the sum of its proper divisors (16631971).

53809085 is a wasteful number, since it uses less digits than its factorization.

53809085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978363.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 53809085 is about 7335.4676060903. The cubic root of 53809085 is about 377.5303485681.

The spelling of 53809085 in words is "fifty-three million, eight hundred nine thousand, eighty-five".