51030553 has 16 divisors (see below), whose sum is σ = 59633280. Its totient is φ = 42768000.

The previous prime is 51030533. The next prime is 51030569. The reversal of 51030553 is 35503015.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51030553 - 2⁹ = 51030041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51030533) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 62518 + ... + 63328.

It is an arithmetic number, because the mean of its divisors is an integer number (3727080).

Almost surely, 2^51030553 is an apocalyptic number.

It is an amenable number.

51030553 is a deficient number, since it is larger than the sum of its proper divisors (8602727).

51030553 is a wasteful number, since it uses less digits than its factorization.

51030553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 51030553 is about 7143.5672461313. The cubic root of 51030553 is about 370.9170168197.

Adding to 51030553 its reverse (35503015), we get a palindrome (86533568).

The spelling of 51030553 in words is "fifty-one million, thirty thousand, five hundred fifty-three".