53165910 has 64 divisors (see below), whose sum is σ = 146419200. Its totient is φ = 12102912.

The previous prime is 53165909. The next prime is 53165911. The reversal of 53165910 is 1956135.

It is an interprime number because it is at equal distance from previous prime (53165909) and next prime (53165911).

It is a super-2 number, since 2×53165910² = 5653227972256200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85581 + ... + 86199.

It is an arithmetic number, because the mean of its divisors is an integer number (2287800).

Almost surely, 2^53165910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53165910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73209600).

53165910 is an abundant number, since it is smaller than the sum of its proper divisors (93253290).

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

53165910 is a wasteful number, since it uses less digits than its factorization.

53165910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 53165910 is about 7291.4957313298. The cubic root of 53165910 is about 376.0201202075.

The spelling of 53165910 in words is "fifty-three million, one hundred sixty-five thousand, nine hundred ten".