52640198 has 16 divisors (see below), whose sum is σ = 85562736. Its totient is φ = 24144480.

The previous prime is 52640197. The next prime is 52640209. The reversal of 52640198 is 89104625.

52640198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (5347671).

Almost surely, 2^52640198 is an apocalyptic number.

52640198 is a deficient number, since it is larger than the sum of its proper divisors (32922538).

52640198 is a wasteful number, since it uses less digits than its factorization.

52640198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12599.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 52640198 is about 7255.3565039907. The cubic root of 52640198 is about 374.7766326081.

The spelling of 52640198 in words is "fifty-two million, six hundred forty thousand, one hundred ninety-eight".