51067631 has 2 divisors, whose sum is σ = 51067632. Its totient is φ = 51067630.

The previous prime is 51067603. The next prime is 51067651. The reversal of 51067631 is 13676015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51067631 - 2²² = 46873327 is a prime.

It is a super-2 number, since 2×51067631² = 5215805871904322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 51067594 and 51067603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51067651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25533815 + 25533816.

It is an arithmetic number, because the mean of its divisors is an integer number (25533816).

Almost surely, 2^51067631 is an apocalyptic number.

51067631 is a deficient number, since it is larger than the sum of its proper divisors (1).

51067631 is an equidigital number, since it uses as much as digits as its factorization.

51067631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 51067631 is about 7146.1619768936. The cubic root of 51067631 is about 371.0068292347.

The spelling of 51067631 in words is "fifty-one million, sixty-seven thousand, six hundred thirty-one".