42902051 has 2 divisors, whose sum is σ = 42902052. Its totient is φ = 42902050.

The previous prime is 42902021. The next prime is 42902063. The reversal of 42902051 is 15020924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42902051 - 2⁶ = 42901987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42902021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21451025 + 21451026.

It is an arithmetic number, because the mean of its divisors is an integer number (21451026).

Almost surely, 2^42902051 is an apocalyptic number.

42902051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42902051 is an equidigital number, since it uses as much as digits as its factorization.

42902051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 42902051 is about 6549.9657251012. The cubic root of 42902051 is about 350.0735926882.

Adding to 42902051 its reverse (15020924), we get a palindrome (57922975).

The spelling of 42902051 in words is "forty-two million, nine hundred two thousand, fifty-one".