5125812898 has 4 divisors (see below), whose sum is σ = 7688719350. Its totient is φ = 2562906448.

The previous prime is 5125812889. The next prime is 5125812911. The reversal of 5125812898 is 8982185215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8982185215 = 5 ⋅1796437043.

It can be written as a sum of positive squares in only one way, i.e., 3458968969 + 1666843929 = 58813^2 + 40827^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281453223 + ... + 1281453226.

Almost surely, 2^5125812898 is an apocalyptic number.

5125812898 is a deficient number, since it is larger than the sum of its proper divisors (2562906452).

5125812898 is a wasteful number, since it uses less digits than its factorization.

5125812898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562906451.

The product of its digits is 460800, while the sum is 49.

The square root of 5125812898 is about 71594.7826171712. The cubic root of 5125812898 is about 1724.1997714340.

The spelling of 5125812898 in words is "five billion, one hundred twenty-five million, eight hundred twelve thousand, eight hundred ninety-eight".