51152125623 has 4 divisors (see below), whose sum is σ = 68202834168. Its totient is φ = 34101417080.

The previous prime is 51152125553. The next prime is 51152125627. The reversal of 51152125623 is 32652125115.

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

It is a cyclic number.

It is not a de Polignac number, because 51152125623 - 2¹³ = 51152117431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152125627) 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, 8525354268 + ... + 8525354273.

It is an arithmetic number, because the mean of its divisors is an integer number (17050708542).

Almost surely, 2^51152125623 is an apocalyptic number.

51152125623 is a deficient number, since it is larger than the sum of its proper divisors (17050708545).

51152125623 is a wasteful number, since it uses less digits than its factorization.

51152125623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17050708544.

The product of its digits is 18000, while the sum is 33.

The spelling of 51152125623 in words is "fifty-one billion, one hundred fifty-two million, one hundred twenty-five thousand, six hundred twenty-three".