42502544 has 40 divisors (see below), whose sum is σ = 99071040. Its totient is φ = 17255808.

The previous prime is 42502541. The next prime is 42502547. The reversal of 42502544 is 44520524.

It is an interprime number because it is at equal distance from previous prime (42502541) and next prime (42502547).

It is a super-3 number, since 3×42502544³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42502541) 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, 7859 + ... + 12114.

It is an arithmetic number, because the mean of its divisors is an integer number (2476776).

Almost surely, 2^42502544 is an apocalyptic number.

It is an amenable number.

42502544 is an abundant number, since it is smaller than the sum of its proper divisors (56568496).

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

42502544 is a wasteful number, since it uses less digits than its factorization.

42502544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20007 (or 20001 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 42502544 is about 6519.3975181760. The cubic root of 42502544 is about 348.9835653161.

The spelling of 42502544 in words is "forty-two million, five hundred two thousand, five hundred forty-four".