51024401 has 2 divisors, whose sum is σ = 51024402. Its totient is φ = 51024400.

The previous prime is 51024397. The next prime is 51024431. The reversal of 51024401 is 10442015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 11397376 = 6295^2 + 3376^2 .

It is a cyclic number.

It is not a de Polignac number, because 51024401 - 2² = 51024397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51024401.

It is not a weakly prime, because it can be changed into another prime (51024431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25512200 + 25512201.

It is an arithmetic number, because the mean of its divisors is an integer number (25512201).

Almost surely, 2^51024401 is an apocalyptic number.

It is an amenable number.

51024401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51024401 is an equidigital number, since it uses as much as digits as its factorization.

51024401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 51024401 is about 7143.1366359604. The cubic root of 51024401 is about 370.9021108920.

Adding to 51024401 its reverse (10442015), we get a palindrome (61466416).

The spelling of 51024401 in words is "fifty-one million, twenty-four thousand, four hundred one".