52561198 has 4 divisors (see below), whose sum is σ = 78841800. Its totient is φ = 26280598.

The previous prime is 52561193. The next prime is 52561207. The reversal of 52561198 is 89116525.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13140298 + ... + 13140301.

It is an arithmetic number, because the mean of its divisors is an integer number (19710450).

Almost surely, 2^52561198 is an apocalyptic number.

52561198 is a deficient number, since it is larger than the sum of its proper divisors (26280602).

52561198 is a wasteful number, since it uses less digits than its factorization.

52561198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26280601.

The product of its digits is 21600, while the sum is 37.

The square root of 52561198 is about 7249.9102063405. The cubic root of 52561198 is about 374.5890562021.

The spelling of 52561198 in words is "fifty-two million, five hundred sixty-one thousand, one hundred ninety-eight".