51014731 has 4 divisors (see below), whose sum is σ = 51078600. Its totient is φ = 50950864.

The previous prime is 51014699. The next prime is 51014737. The reversal of 51014731 is 13741015.

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 51014731 - 2⁵ = 51014699 is a prime.

It is a super-2 number, since 2×51014731² = 5205005558004722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51014737) 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, 30721 + ... + 32338.

It is an arithmetic number, because the mean of its divisors is an integer number (12769650).

Almost surely, 2^51014731 is an apocalyptic number.

51014731 is a deficient number, since it is larger than the sum of its proper divisors (63869).

51014731 is an equidigital number, since it uses as much as digits as its factorization.

51014731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63868.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 51014731 is about 7142.4597303730. The cubic root of 51014731 is about 370.8786786391.

Adding to 51014731 its reverse (13741015), we get a palindrome (64755746).

The spelling of 51014731 in words is "fifty-one million, fourteen thousand, seven hundred thirty-one".