5420851 has 2 divisors, whose sum is σ = 5420852. Its totient is φ = 5420850.

The previous prime is 5420827. The next prime is 5420867. The reversal of 5420851 is 1580245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5420851 - 2⁵ = 5420819 is a prime.

It is not a weakly prime, because it can be changed into another prime (5420551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710425 + 2710426.

It is an arithmetic number, because the mean of its divisors is an integer number (2710426).

Almost surely, 2^5420851 is an apocalyptic number.

5420851 is a deficient number, since it is larger than the sum of its proper divisors (1).

5420851 is an equidigital number, since it uses as much as digits as its factorization.

5420851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5420851 is about 2328.2721060907. The cubic root of 5420851 is about 175.6665842522. Note that the first 3 decimals are identical.

Subtracting from 5420851 its reverse (1580245), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 5420851 in words is "five million, four hundred twenty thousand, eight hundred fifty-one".