42100502 has 4 divisors (see below), whose sum is σ = 63150756. Its totient is φ = 21050250.

The previous prime is 42100501. The next prime is 42100519. The reversal of 42100502 is 20500124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42100501) 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 as a sum of consecutive naturals, namely, 10525124 + ... + 10525127.

It is an arithmetic number, because the mean of its divisors is an integer number (15787689).

Almost surely, 2^42100502 is an apocalyptic number.

42100502 is a deficient number, since it is larger than the sum of its proper divisors (21050254).

42100502 is a wasteful number, since it uses less digits than its factorization.

42100502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21050253.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 42100502 is about 6488.4899630037. The cubic root of 42100502 is about 347.8797036536.

Adding to 42100502 its reverse (20500124), we get a palindrome (62600626).

The spelling of 42100502 in words is "forty-two million, one hundred thousand, five hundred two".