42505036 has 24 divisors (see below), whose sum is σ = 85236480. Its totient is φ = 18167952.

The previous prime is 42505031. The next prime is 42505051. The reversal of 42505036 is 63050524.

It is a super-2 number, since 2×42505036² = 3613356170722592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42505036.

It is not an unprimeable number, because it can be changed into a prime (42505031) 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, 9921 + ... + 13543.

It is an arithmetic number, because the mean of its divisors is an integer number (3551520).

Almost surely, 2^42505036 is an apocalyptic number.

It is an amenable number.

42505036 is an abundant number, since it is smaller than the sum of its proper divisors (42731444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42505036 is a wasteful number, since it uses less digits than its factorization.

42505036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 42505036 is about 6519.5886373298. The cubic root of 42505036 is about 348.9903856926.

The spelling of 42505036 in words is "forty-two million, five hundred five thousand, thirty-six".