42503245 has 8 divisors (see below), whose sum is σ = 51042816. Its totient is φ = 33976656.

The previous prime is 42503239. The next prime is 42503249. The reversal of 42503245 is 54230524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42503245 - 2²³ = 34114637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6784 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (6380352).

Almost surely, 2^42503245 is an apocalyptic number.

It is an amenable number.

42503245 is a deficient number, since it is larger than the sum of its proper divisors (8539571).

42503245 is a wasteful number, since it uses less digits than its factorization.

42503245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6491.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42503245 is about 6519.4512805910. The cubic root of 42503245 is about 348.9854839161.

Adding to 42503245 its reverse (54230524), we get a palindrome (96733769).

The spelling of 42503245 in words is "forty-two million, five hundred three thousand, two hundred forty-five".