51035481 has 16 divisors (see below), whose sum is σ = 86409600. Its totient is φ = 29163024.

The previous prime is 51035473. The next prime is 51035497. The reversal of 51035481 is 18453015.

It is not a de Polignac number, because 51035481 - 2³ = 51035473 is a prime.

It is a super-2 number, since 2×51035481² = 5209240641802722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51035431) 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, 134826 + ... + 135203.

It is an arithmetic number, because the mean of its divisors is an integer number (5400600).

Almost surely, 2^51035481 is an apocalyptic number.

It is an amenable number.

51035481 is a deficient number, since it is larger than the sum of its proper divisors (35374119).

51035481 is a wasteful number, since it uses less digits than its factorization.

51035481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270045 (or 270039 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51035481 is about 7143.9121635138. The cubic root of 51035481 is about 370.9289562044.

Adding to 51035481 its reverse (18453015), we get a palindrome (69488496).

The spelling of 51035481 in words is "fifty-one million, thirty-five thousand, four hundred eighty-one".