52019620258 has 4 divisors (see below), whose sum is σ = 78029430390. Its totient is φ = 26009810128.

The previous prime is 52019620249. The next prime is 52019620291. The reversal of 52019620258 is 85202691025.

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

It can be written as a sum of positive squares in only one way, i.e., 44387326489 + 7632293769 = 210683^2 + 87363^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 52019620258.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13004905063 + ... + 13004905066.

Almost surely, 2^52019620258 is an apocalyptic number.

52019620258 is a deficient number, since it is larger than the sum of its proper divisors (26009810132).

52019620258 is a wasteful number, since it uses less digits than its factorization.

52019620258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26009810131.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 52019620258 in words is "fifty-two billion, nineteen million, six hundred twenty thousand, two hundred fifty-eight".