51544031 has 12 divisors (see below), whose sum is σ = 65410920. Its totient is φ = 40163760.

The previous prime is 51544021. The next prime is 51544033. The reversal of 51544031 is 13044515.

It is not a de Polignac number, because 51544031 - 2⁶ = 51543967 is a prime.

It is a super-2 number, since 2×51544031² = 5313574263457922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51543988 and 51544006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47276 + ... + 48353.

It is an arithmetic number, because the mean of its divisors is an integer number (5450910).

Almost surely, 2^51544031 is an apocalyptic number.

51544031 is a deficient number, since it is larger than the sum of its proper divisors (13866889).

51544031 is a wasteful number, since it uses less digits than its factorization.

51544031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95654 (or 95647 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51544031 is about 7179.4171769023. The cubic root of 51544031 is about 372.1569437400.

Adding to 51544031 its reverse (13044515), we get a palindrome (64588546).

The spelling of 51544031 in words is "fifty-one million, five hundred forty-four thousand, thirty-one".