53610018 has 96 divisors (see below), whose sum is σ = 138189888. Its totient is φ = 13823040.

The previous prime is 53610017. The next prime is 53610019. The reversal of 53610018 is 81001635.

It is an interprime number because it is at equal distance from previous prime (53610017) and next prime (53610019).

It is a self number, because there is not a number n which added to its sum of digits gives 53610018.

It is not an unprimeable number, because it can be changed into a prime (53610013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391246 + ... + 391382.

It is an arithmetic number, because the mean of its divisors is an integer number (1439478).

Almost surely, 2^53610018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53610018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69094944).

53610018 is an abundant number, since it is smaller than the sum of its proper divisors (84579870).

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

53610018 is a wasteful number, since it uses less digits than its factorization.

53610018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 53610018 is about 7321.8862323858. The cubic root of 53610018 is about 377.0642147533.

The spelling of 53610018 in words is "fifty-three million, six hundred ten thousand, eighteen".