51375123 has 12 divisors (see below), whose sum is σ = 77435280. Its totient is φ = 32760816.

The previous prime is 51375119. The next prime is 51375127. The reversal of 51375123 is 32157315.

It is an interprime number because it is at equal distance from previous prime (51375119) and next prime (51375127).

It is not a de Polignac number, because 51375123 - 2² = 51375119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51375127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123888 + ... + 124301.

It is an arithmetic number, because the mean of its divisors is an integer number (6452940).

Almost surely, 2^51375123 is an apocalyptic number.

51375123 is a deficient number, since it is larger than the sum of its proper divisors (26060157).

51375123 is a wasteful number, since it uses less digits than its factorization.

51375123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248218 (or 248215 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 51375123 is about 7167.6441736459. The cubic root of 51375123 is about 371.7499837567.

The spelling of 51375123 in words is "fifty-one million, three hundred seventy-five thousand, one hundred twenty-three".