51063031 has 4 divisors (see below), whose sum is σ = 51589552. Its totient is φ = 50536512.

The previous prime is 51063029. The next prime is 51063037. The reversal of 51063031 is 13036015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51063031 - 2¹ = 51063029 is a prime.

It is a super-2 number, since 2×51063031² = 5214866269813922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51063037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263115 + ... + 263308.

It is an arithmetic number, because the mean of its divisors is an integer number (12897388).

Almost surely, 2^51063031 is an apocalyptic number.

51063031 is a deficient number, since it is larger than the sum of its proper divisors (526521).

51063031 is an equidigital number, since it uses as much as digits as its factorization.

51063031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526520.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 51063031 is about 7145.8401185585. The cubic root of 51063031 is about 370.9956892189.

Adding to 51063031 its reverse (13036015), we get a palindrome (64099046).

The spelling of 51063031 in words is "fifty-one million, sixty-three thousand, thirty-one".