51262447 has 2 divisors, whose sum is σ = 51262448. Its totient is φ = 51262446.

The previous prime is 51262439. The next prime is 51262489. The reversal of 51262447 is 74426215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51262447 - 2³ = 51262439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51262417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25631223 + 25631224.

It is an arithmetic number, because the mean of its divisors is an integer number (25631224).

Almost surely, 2^51262447 is an apocalyptic number.

51262447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51262447 is an equidigital number, since it uses as much as digits as its factorization.

51262447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 51262447 is about 7159.7798150502. The cubic root of 51262447 is about 371.4780106141.

The spelling of 51262447 in words is "fifty-one million, two hundred sixty-two thousand, four hundred forty-seven".