51011441 has 16 divisors (see below), whose sum is σ = 59004288. Its totient is φ = 43680000.

The previous prime is 51011437. The next prime is 51011453. The reversal of 51011441 is 14411015.

It is not a de Polignac number, because 51011441 - 2² = 51011437 is a prime.

It is a super-2 number, since 2×51011441² = 5204334225792962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14066 + ... + 17316.

It is an arithmetic number, because the mean of its divisors is an integer number (3687768).

Almost surely, 2^51011441 is an apocalyptic number.

It is an amenable number.

51011441 is a deficient number, since it is larger than the sum of its proper divisors (7992847).

51011441 is a wasteful number, since it uses less digits than its factorization.

51011441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 51011441 is about 7142.2294138455. The cubic root of 51011441 is about 370.8707056669.

Adding to 51011441 its reverse (14411015), we get a palindrome (65422456).

The spelling of 51011441 in words is "fifty-one million, eleven thousand, four hundred forty-one".