52018380 has 36 divisors (see below), whose sum is σ = 157789632. Its totient is φ = 13871520.

The previous prime is 52018361. The next prime is 52018457. The reversal of 52018380 is 8381025.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144316 + ... + 144675.

Almost surely, 2^52018380 is an apocalyptic number.

It is an amenable number.

52018380 is an abundant number, since it is smaller than the sum of its proper divisors (105771252).

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

52018380 is a wasteful number, since it uses less digits than its factorization.

52018380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289006 (or 289001 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 52018380 is about 7212.3768620338. The cubic root of 52018380 is about 373.2950871393.

The spelling of 52018380 in words is "fifty-two million, eighteen thousand, three hundred eighty".