51034531 has 4 divisors (see below), whose sum is σ = 51056200. Its totient is φ = 51012864.

The previous prime is 51034523. The next prime is 51034541. The reversal of 51034531 is 13543015.

It is a happy number.

51034531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13543015 = 5 ⋅2708603.

It is a cyclic number.

It is not a de Polignac number, because 51034531 - 2³ = 51034523 is a prime.

It is a super-2 number, since 2×51034531² = 5209046708779922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51034541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6801 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (12764050).

Almost surely, 2^51034531 is an apocalyptic number.

51034531 is a deficient number, since it is larger than the sum of its proper divisors (21669).

51034531 is a wasteful number, since it uses less digits than its factorization.

51034531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21668.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51034531 is about 7143.8456730251. The cubic root of 51034531 is about 370.9266546377.

Adding to 51034531 its reverse (13543015), we get a palindrome (64577546).

The spelling of 51034531 in words is "fifty-one million, thirty-four thousand, five hundred thirty-one".