53031602085 has 128 divisors (see below), whose sum is σ = 112730517504. Its totient is φ = 20609372160.

The previous prime is 53031602081. The next prime is 53031602123. The reversal of 53031602085 is 58020613035.

53031602085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53031602085 - 2² = 53031602081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53031602081) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3074094 + ... + 3091296.

It is an arithmetic number, because the mean of its divisors is an integer number (880707168).

Almost surely, 2^53031602085 is an apocalyptic number.

53031602085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53031602085 is an abundant number, since it is smaller than the sum of its proper divisors (59698915419).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53031602085 is a wasteful number, since it uses less digits than its factorization.

53031602085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17403.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 53031602085 in words is "fifty-three billion, thirty-one million, six hundred two thousand, eighty-five".