51015053 has 4 divisors (see below), whose sum is σ = 51029340. Its totient is φ = 51000768.

The previous prime is 51015047. The next prime is 51015061. The reversal of 51015053 is 35051015.

It is a happy number.

51015053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 64009 = 7138^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 51015053 - 2¹² = 51010957 is a prime.

It is a super-3 number, since 3×51015053³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51015023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3443 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (12757335).

Almost surely, 2^51015053 is an apocalyptic number.

It is an amenable number.

51015053 is a deficient number, since it is larger than the sum of its proper divisors (14287).

51015053 is an equidigital number, since it uses as much as digits as its factorization.

51015053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14286.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 51015053 is about 7142.4822715916. The cubic root of 51015053 is about 370.8794589541.

Adding to 51015053 its reverse (35051015), we get a palindrome (86066068).

The spelling of 51015053 in words is "fifty-one million, fifteen thousand, fifty-three".