51483493 has 2 divisors, whose sum is σ = 51483494. Its totient is φ = 51483492.

The previous prime is 51483491. The next prime is 51483517. The reversal of 51483493 is 39438415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49028004 + 2455489 = 7002^2 + 1567^2 .

It is a cyclic number.

It is not a de Polignac number, because 51483493 - 2¹ = 51483491 is a prime.

Together with 51483491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51483491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25741746 + 25741747.

It is an arithmetic number, because the mean of its divisors is an integer number (25741747).

Almost surely, 2^51483493 is an apocalyptic number.

It is an amenable number.

51483493 is a deficient number, since it is larger than the sum of its proper divisors (1).

51483493 is an equidigital number, since it uses as much as digits as its factorization.

51483493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 51483493 is about 7175.1998578437. The cubic root of 51483493 is about 372.0111883366.

The spelling of 51483493 in words is "fifty-one million, four hundred eighty-three thousand, four hundred ninety-three".