53917950 has 48 divisors (see below), whose sum is σ = 134942256. Its totient is φ = 14246400.

The previous prime is 53917943. The next prime is 53917951. The reversal of 53917950 is 5971935.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53917899 and 53917908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53917951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15360 + ... + 18540.

It is an arithmetic number, because the mean of its divisors is an integer number (2811297).

Almost surely, 2^53917950 is an apocalyptic number.

53917950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53917950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67471128).

53917950 is an abundant number, since it is smaller than the sum of its proper divisors (81024306).

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

53917950 is a wasteful number, since it uses less digits than its factorization.

53917950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 53917950 is about 7342.8843106779. The cubic root of 53917950 is about 377.7847799228.

The spelling of 53917950 in words is "fifty-three million, nine hundred seventeen thousand, nine hundred fifty".