42507603 has 24 divisors (see below), whose sum is σ = 63737856. Its totient is φ = 27270000.

The previous prime is 42507601. The next prime is 42507613. The reversal of 42507603 is 30670524.

It is a happy number.

42507603 is a `hidden beast` number, since 4 + 2 + 50 + 7 + 603 = 666.

It is not a de Polignac number, because 42507603 - 2¹ = 42507601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42507601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69726 + ... + 70332.

It is an arithmetic number, because the mean of its divisors is an integer number (2655744).

Almost surely, 2^42507603 is an apocalyptic number.

42507603 is a deficient number, since it is larger than the sum of its proper divisors (21230253).

42507603 is a wasteful number, since it uses less digits than its factorization.

42507603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 42507603 is about 6519.7855026067. The cubic root of 42507603 is about 348.9974110584.

The spelling of 42507603 in words is "forty-two million, five hundred seven thousand, six hundred three".