51148538 has 8 divisors (see below), whose sum is σ = 87683232. Its totient is φ = 21920796.

The previous prime is 51148523. The next prime is 51148579. The reversal of 51148538 is 83584115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51148498 and 51148507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826720 + ... + 1826747.

It is an arithmetic number, because the mean of its divisors is an integer number (10960404).

Almost surely, 2^51148538 is an apocalyptic number.

51148538 is a deficient number, since it is larger than the sum of its proper divisors (36534694).

51148538 is a wasteful number, since it uses less digits than its factorization.

51148538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653476.

The product of its digits is 19200, while the sum is 35.

The square root of 51148538 is about 7151.8206073698. The cubic root of 51148538 is about 371.2026558981.

The spelling of 51148538 in words is "fifty-one million, one hundred forty-eight thousand, five hundred thirty-eight".