42603051 has 4 divisors (see below), whose sum is σ = 56804072. Its totient is φ = 28402032.

The previous prime is 42603047. The next prime is 42603091. The reversal of 42603051 is 15030624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42603051 - 2² = 42603047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42603031) 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, 7100506 + ... + 7100511.

It is an arithmetic number, because the mean of its divisors is an integer number (14201018).

Almost surely, 2^42603051 is an apocalyptic number.

42603051 is a deficient number, since it is larger than the sum of its proper divisors (14201021).

42603051 is a wasteful number, since it uses less digits than its factorization.

42603051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14201020.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42603051 is about 6527.1012708552. The cubic root of 42603051 is about 349.2584326246.

Adding to 42603051 its reverse (15030624), we get a palindrome (57633675).

The spelling of 42603051 in words is "forty-two million, six hundred three thousand, fifty-one".