51430801 has 2 divisors, whose sum is σ = 51430802. Its totient is φ = 51430800.

The previous prime is 51430787. The next prime is 51430807. The reversal of 51430801 is 10803415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49688401 + 1742400 = 7049^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 51430801 - 2⁹ = 51430289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51430807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25715400 + 25715401.

It is an arithmetic number, because the mean of its divisors is an integer number (25715401).

Almost surely, 2^51430801 is an apocalyptic number.

It is an amenable number.

51430801 is a deficient number, since it is larger than the sum of its proper divisors (1).

51430801 is an equidigital number, since it uses as much as digits as its factorization.

51430801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51430801 is about 7171.5271037625. The cubic root of 51430801 is about 371.8842304608.

The spelling of 51430801 in words is "fifty-one million, four hundred thirty thousand, eight hundred one".