53017956 has 48 divisors (see below), whose sum is σ = 138022080. Its totient is φ = 17599680.

The previous prime is 53017919. The next prime is 53017957. The reversal of 53017956 is 65971035.

It is a happy number.

53017956 is a `hidden beast` number, since 530 + 1 + 79 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53017956.

It is not an unprimeable number, because it can be changed into a prime (53017957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29475 + ... + 31221.

It is an arithmetic number, because the mean of its divisors is an integer number (2875460).

Almost surely, 2^53017956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53017956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69011040).

53017956 is an abundant number, since it is smaller than the sum of its proper divisors (85004124).

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

53017956 is a wasteful number, since it uses less digits than its factorization.

53017956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 53017956 is about 7281.3430079897. The cubic root of 53017956 is about 375.6709906746.

The spelling of 53017956 in words is "fifty-three million, seventeen thousand, nine hundred fifty-six".