5130778 has 4 divisors (see below), whose sum is σ = 7696170. Its totient is φ = 2565388.

The previous prime is 5130773. The next prime is 5130791. The reversal of 5130778 is 8770315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8770315 = 5 ⋅1754063.

It can be written as a sum of positive squares in only one way, i.e., 3560769 + 1570009 = 1887^2 + 1253^2 .

It is not an unprimeable number, because it can be changed into a prime (5130773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282693 + ... + 1282696.

Almost surely, 2^5130778 is an apocalyptic number.

5130778 is a deficient number, since it is larger than the sum of its proper divisors (2565392).

5130778 is a wasteful number, since it uses less digits than its factorization.

5130778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565391.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 5130778 is about 2265.1220717657. The cubic root of 5130778 is about 172.4756305279.

The spelling of 5130778 in words is "five million, one hundred thirty thousand, seven hundred seventy-eight".