52192140 has 288 divisors, whose sum is σ = 200202240. Its totient is φ = 9884160.

The previous prime is 52192117. The next prime is 52192169. The reversal of 52192140 is 4129125.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 52192140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 660621 + ... + 660699.

Almost surely, 2^52192140 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 52192140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100101120).

52192140 is an abundant number, since it is smaller than the sum of its proper divisors (148010100).

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

52192140 is a wasteful number, since it uses less digits than its factorization.

52192140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

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

The square root of 52192140 is about 7224.4127789046. The cubic root of 52192140 is about 373.7102715757.

The spelling of 52192140 in words is "fifty-two million, one hundred ninety-two thousand, one hundred forty".