42015501 has 24 divisors (see below), whose sum is σ = 66437280. Its totient is φ = 25375200.

The previous prime is 42015487. The next prime is 42015527. The reversal of 42015501 is 10551024.

It is not a de Polignac number, because 42015501 - 2⁵ = 42015469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015541) 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, 37966 + ... + 39056.

It is an arithmetic number, because the mean of its divisors is an integer number (2768220).

Almost surely, 2^42015501 is an apocalyptic number.

It is an amenable number.

42015501 is a deficient number, since it is larger than the sum of its proper divisors (24421779).

42015501 is a wasteful number, since it uses less digits than its factorization.

42015501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 42015501 is about 6481.9365161964. The cubic root of 42015501 is about 347.6454226328.

Adding to 42015501 its reverse (10551024), we get a palindrome (52566525).

The spelling of 42015501 in words is "forty-two million, fifteen thousand, five hundred one".