51154730 has 32 divisors (see below), whose sum is σ = 100744128. Its totient is φ = 18547200.

The previous prime is 51154721. The next prime is 51154759. The reversal of 51154730 is 3745115.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51154730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73685 + ... + 74375.

It is an arithmetic number, because the mean of its divisors is an integer number (3148254).

Almost surely, 2^51154730 is an apocalyptic number.

51154730 is a deficient number, since it is larger than the sum of its proper divisors (49589398).

51154730 is a wasteful number, since it uses less digits than its factorization.

51154730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 51154730 is about 7152.2534910334. The cubic root of 51154730 is about 371.2176344566.

Adding to 51154730 its reverse (3745115), we get a palindrome (54899845).

The spelling of 51154730 in words is "fifty-one million, one hundred fifty-four thousand, seven hundred thirty".