42125603 has 16 divisors (see below), whose sum is σ = 49408800. Its totient is φ = 35562240.

The previous prime is 42125597. The next prime is 42125639. The reversal of 42125603 is 30652124.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42125603 is a prime.

It is a super-2 number, since 2×42125603² = 3549132856227218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42125653) 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, 4223 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (3088050).

Almost surely, 2^42125603 is an apocalyptic number.

42125603 is a deficient number, since it is larger than the sum of its proper divisors (7283197).

42125603 is a wasteful number, since it uses less digits than its factorization.

42125603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42125603 is about 6490.4239460917. The cubic root of 42125603 is about 347.9488270859.

Multiplying 42125603 by its sum of digits (23), we get a palindrome (968888869).

Adding to 42125603 its reverse (30652124), we get a palindrome (72777727).

The spelling of 42125603 in words is "forty-two million, one hundred twenty-five thousand, six hundred three".