51148042 has 16 divisors (see below), whose sum is σ = 83980512. Its totient is φ = 23170320.

The previous prime is 51148039. The next prime is 51148051. The reversal of 51148042 is 24084115.

It is a super-2 number, since 2×51148042² = 5232244400867528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51147998 and 51148016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968 + ... + 10540.

It is an arithmetic number, because the mean of its divisors is an integer number (5248782).

Almost surely, 2^51148042 is an apocalyptic number.

51148042 is a deficient number, since it is larger than the sum of its proper divisors (32832470).

51148042 is a wasteful number, since it uses less digits than its factorization.

51148042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 51148042 is about 7151.7859308008. The cubic root of 51148042 is about 371.2014560130.

The spelling of 51148042 in words is "fifty-one million, one hundred forty-eight thousand, forty-two".