51538411 has 2 divisors, whose sum is σ = 51538412. Its totient is φ = 51538410.

The previous prime is 51538397. The next prime is 51538433. The reversal of 51538411 is 11483515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51538411 - 2¹⁹ = 51014123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51538411.

It is not a weakly prime, because it can be changed into another prime (51538471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25769205 + 25769206.

It is an arithmetic number, because the mean of its divisors is an integer number (25769206).

Almost surely, 2^51538411 is an apocalyptic number.

51538411 is a deficient number, since it is larger than the sum of its proper divisors (1).

51538411 is an equidigital number, since it uses as much as digits as its factorization.

51538411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 28.

The square root of 51538411 is about 7179.0257695595. The cubic root of 51538411 is about 372.1434174532.

The spelling of 51538411 in words is "fifty-one million, five hundred thirty-eight thousand, four hundred eleven".