5125618 has 4 divisors (see below), whose sum is σ = 7688430. Its totient is φ = 2562808.

The previous prime is 5125609. The next prime is 5125639. The reversal of 5125618 is 8165215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8165215 = 5 ⋅1633043.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 2393209 = 1653^2 + 1547^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1281403 + ... + 1281406.

Almost surely, 2^5125618 is an apocalyptic number.

5125618 is a deficient number, since it is larger than the sum of its proper divisors (2562812).

5125618 is a wasteful number, since it uses less digits than its factorization.

5125618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562811.

The product of its digits is 2400, while the sum is 28.

The square root of 5125618 is about 2263.9827737861. The cubic root of 5125618 is about 172.4177918162.

It can be divided in two parts, 512 and 5618, that multiplied together give a square (2876416 = 1696²).

The spelling of 5125618 in words is "five million, one hundred twenty-five thousand, six hundred eighteen".