51545030 has 16 divisors (see below), whose sum is σ = 92992320. Its totient is φ = 20571072.

The previous prime is 51545029. The next prime is 51545059. The reversal of 51545030 is 3054515.

It is a junction number, because it is equal to n+sod(n) for n = 51544987 and 51545005.

It is a congruent number.

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, 1070 + ... + 10209.

It is an arithmetic number, because the mean of its divisors is an integer number (5812020).

Almost surely, 2^51545030 is an apocalyptic number.

51545030 is a deficient number, since it is larger than the sum of its proper divisors (41447290).

51545030 is a wasteful number, since it uses less digits than its factorization.

51545030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 51545030 is about 7179.4867504579. The cubic root of 51545030 is about 372.1593480429.

Adding to 51545030 its reverse (3054515), we get a palindrome (54599545).

The spelling of 51545030 in words is "fifty-one million, five hundred forty-five thousand, thirty".