51125441 has 4 divisors (see below), whose sum is σ = 51408084. Its totient is φ = 50842800.

The previous prime is 51125419. The next prime is 51125461. The reversal of 51125441 is 14452115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14452115 = 5 ⋅2890423.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 45171841 = 2440^2 + 6721^2 .

It is a cyclic number.

It is not a de Polignac number, because 51125441 - 2⁶ = 51125377 is a prime.

It is a super-2 number, since 2×51125441² = 5227621434888962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51125461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141050 + ... + 141411.

It is an arithmetic number, because the mean of its divisors is an integer number (12852021).

Almost surely, 2^51125441 is an apocalyptic number.

It is an amenable number.

51125441 is a deficient number, since it is larger than the sum of its proper divisors (282643).

51125441 is a wasteful number, since it uses less digits than its factorization.

51125441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282642.

The product of its digits is 800, while the sum is 23.

The square root of 51125441 is about 7150.2056613779. The cubic root of 51125441 is about 371.1467731761.

Adding to 51125441 its reverse (14452115), we get a palindrome (65577556).

It can be divided in two parts, 511 and 25441, that added together give a palindrome (25952).

The spelling of 51125441 in words is "fifty-one million, one hundred twenty-five thousand, four hundred forty-one".