5125126973 has 4 divisors (see below), whose sum is σ = 5130147708. Its totient is φ = 5120106240.

The previous prime is 5125126939. The next prime is 5125126991. The reversal of 5125126973 is 3796215215.

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 1097066884 + 4028060089 = 33122^2 + 63467^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125126973 - 2²² = 5120932669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5125126973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125126933) 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, 2508836 + ... + 2510877.

It is an arithmetic number, because the mean of its divisors is an integer number (1282536927).

Almost surely, 2^5125126973 is an apocalyptic number.

It is an amenable number.

5125126973 is a deficient number, since it is larger than the sum of its proper divisors (5020735).

5125126973 is a wasteful number, since it uses less digits than its factorization.

5125126973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020734.

The product of its digits is 113400, while the sum is 41.

The square root of 5125126973 is about 71589.9921287885. The cubic root of 5125126973 is about 1724.1228584636.

The spelling of 5125126973 in words is "five billion, one hundred twenty-five million, one hundred twenty-six thousand, nine hundred seventy-three".