5130625561 has 4 divisors (see below), whose sum is σ = 5133807972. Its totient is φ = 5127443152.

The previous prime is 5130625547. The next prime is 5130625583. The reversal of 5130625561 is 1655260315.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4416399936 + 714225625 = 66456^2 + 26725^2 .

It is a cyclic number.

It is not a de Polignac number, because 5130625561 - 2²⁵ = 5097071129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5130625541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588786 + ... + 1592011.

It is an arithmetic number, because the mean of its divisors is an integer number (1283451993).

Almost surely, 2^5130625561 is an apocalyptic number.

It is an amenable number.

5130625561 is a deficient number, since it is larger than the sum of its proper divisors (3182411).

5130625561 is a wasteful number, since it uses less digits than its factorization.

5130625561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182410.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 5130625561 is about 71628.3851625876. The cubic root of 5130625561 is about 1724.7392238713.

Adding to 5130625561 its reverse (1655260315), we get a palindrome (6785885876).

It can be divided in two parts, 51306 and 25561, that added together give a palindrome (76867).

The spelling of 5130625561 in words is "five billion, one hundred thirty million, six hundred twenty-five thousand, five hundred sixty-one".