51053913 has 12 divisors (see below), whose sum is σ = 74506068. Its totient is φ = 33684480.

The previous prime is 51053911. The next prime is 51053923. The reversal of 51053913 is 31935015.

It can be written as a sum of positive squares in 2 ways, for example, as 39275289 + 11778624 = 6267^2 + 3432^2 .

It is not a de Polignac number, because 51053913 - 2¹ = 51053911 is a prime.

It is a super-2 number, since 2×51053913² = 5213004065223138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51053911) 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 11 ways as a sum of consecutive naturals, for example, 28368 + ... + 30113.

It is an arithmetic number, because the mean of its divisors is an integer number (6208839).

Almost surely, 2^51053913 is an apocalyptic number.

It is an amenable number.

51053913 is a deficient number, since it is larger than the sum of its proper divisors (23452155).

51053913 is a wasteful number, since it uses less digits than its factorization.

51053913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58584 (or 58581 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 51053913 is about 7145.2020965120. The cubic root of 51053913 is about 370.9736057925.

Adding to 51053913 its reverse (31935015), we get a palindrome (82988928).

The spelling of 51053913 in words is "fifty-one million, fifty-three thousand, nine hundred thirteen".