42061051 has 4 divisors (see below), whose sum is σ = 42074032. Its totient is φ = 42048072.

The previous prime is 42061037. The next prime is 42061073. The reversal of 42061051 is 15016024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42061051 - 2⁹ = 42060539 is a prime.

It is a super-2 number, since 2×42061051² = 3538264022449202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42061001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2881 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (10518508).

Almost surely, 2^42061051 is an apocalyptic number.

42061051 is a deficient number, since it is larger than the sum of its proper divisors (12981).

42061051 is an equidigital number, since it uses as much as digits as its factorization.

42061051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12980.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 42061051 is about 6485.4491748837. The cubic root of 42061051 is about 347.7710074734.

Adding to 42061051 its reverse (15016024), we get a palindrome (57077075).

The spelling of 42061051 in words is "forty-two million, sixty-one thousand, fifty-one".