51148634 has 16 divisors (see below), whose sum is σ = 80719200. Its totient is φ = 24272304.

The previous prime is 51148633. The next prime is 51148649. The reversal of 51148634 is 43684115.

It is a self number, because there is not a number n which added to its sum of digits gives 51148634.

It is not an unprimeable number, because it can be changed into a prime (51148633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 10895.

It is an arithmetic number, because the mean of its divisors is an integer number (5044950).

Almost surely, 2^51148634 is an apocalyptic number.

51148634 is a deficient number, since it is larger than the sum of its proper divisors (29570566).

51148634 is a wasteful number, since it uses less digits than its factorization.

51148634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15037.

The product of its digits is 11520, while the sum is 32.

The square root of 51148634 is about 7151.8273189444. The cubic root of 51148634 is about 371.2028881331.

The spelling of 51148634 in words is "fifty-one million, one hundred forty-eight thousand, six hundred thirty-four".