42030051 has 16 divisors (see below), whose sum is σ = 64157184. Its totient is φ = 23975424.

The previous prime is 42030047. The next prime is 42030089. The reversal of 42030051 is 15003024.

It is not a de Polignac number, because 42030051 - 2² = 42030047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42030051.

It is not an unprimeable number, because it can be changed into a prime (42030031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13891 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (4009824).

Almost surely, 2^42030051 is an apocalyptic number.

42030051 is a deficient number, since it is larger than the sum of its proper divisors (22127133).

42030051 is a wasteful number, since it uses less digits than its factorization.

42030051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 42030051 is about 6483.0587688220. The cubic root of 42030051 is about 347.6855479596.

Adding to 42030051 its reverse (15003024), we get a palindrome (57033075).

The spelling of 42030051 in words is "forty-two million, thirty thousand, fifty-one".