52018990 has 16 divisors (see below), whose sum is σ = 93716352. Its totient is φ = 20789344.

The previous prime is 52018969. The next prime is 52018991. The reversal of 52018990 is 9981025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52018991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20892 + ... + 23248.

It is an arithmetic number, because the mean of its divisors is an integer number (5857272).

Almost surely, 2^52018990 is an apocalyptic number.

52018990 is a deficient number, since it is larger than the sum of its proper divisors (41697362).

52018990 is a wasteful number, since it uses less digits than its factorization.

52018990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 52018990 is about 7212.4191503267. The cubic root of 52018990 is about 373.2965462973.

The spelling of 52018990 in words is "fifty-two million, eighteen thousand, nine hundred ninety".