42501015 has 12 divisors (see below), whose sum is σ = 73668504. Its totient is φ = 22667184.

The previous prime is 42501013. The next prime is 42501023. The reversal of 42501015 is 51010524.

It is not a de Polignac number, because 42501015 - 2¹ = 42501013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472189 + ... + 472278.

It is an arithmetic number, because the mean of its divisors is an integer number (6139042).

Almost surely, 2^42501015 is an apocalyptic number.

42501015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42501015 is a deficient number, since it is larger than the sum of its proper divisors (31167489).

42501015 is a wasteful number, since it uses less digits than its factorization.

42501015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944478 (or 944475 counting only the distinct ones).

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

The square root of 42501015 is about 6519.2802516842. The cubic root of 42501015 is about 348.9793804508.

Adding to 42501015 its reverse (51010524), we get a palindrome (93511539).

The spelling of 42501015 in words is "forty-two million, five hundred one thousand, fifteen".