5125532123 has 4 divisors (see below), whose sum is σ = 5302274640. Its totient is φ = 4948789608.

The previous prime is 5125532119. The next prime is 5125532141. The reversal of 5125532123 is 3212355215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212355215 = 5 ⋅642471043.

It is a cyclic number.

It is not a de Polignac number, because 5125532123 - 2² = 5125532119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 176742487 = 5125532123 / (5 + 1 + 2 + 5 + 5 + 3 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5125531123) 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, 88371215 + ... + 88371272.

It is an arithmetic number, because the mean of its divisors is an integer number (1325568660).

Almost surely, 2^5125532123 is an apocalyptic number.

5125532123 is a deficient number, since it is larger than the sum of its proper divisors (176742517).

5125532123 is a wasteful number, since it uses less digits than its factorization.

5125532123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176742516.

The product of its digits is 9000, while the sum is 29.

The square root of 5125532123 is about 71592.8217281593. The cubic root of 5125532123 is about 1724.1682888809.

Adding to 5125532123 its reverse (3212355215), we get a palindrome (8337887338).

The spelling of 5125532123 in words is "five billion, one hundred twenty-five million, five hundred thirty-two thousand, one hundred twenty-three".