52016430 has 64 divisors (see below), whose sum is σ = 136779840. Its totient is φ = 12601344.

The previous prime is 52016423. The next prime is 52016431. The reversal of 52016430 is 3461025.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52016397 and 52016406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52016431) 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, 13032 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (2137185).

Almost surely, 2^52016430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52016430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68389920).

52016430 is an abundant number, since it is smaller than the sum of its proper divisors (84763410).

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

52016430 is a wasteful number, since it uses less digits than its factorization.

52016430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 52016430 is about 7212.2416764831. The cubic root of 52016430 is about 373.2904225411.

Adding to 52016430 its reverse (3461025), we get a palindrome (55477455).

The spelling of 52016430 in words is "fifty-two million, sixteen thousand, four hundred thirty".