42523516 has 24 divisors (see below), whose sum is σ = 85833440. Its totient is φ = 18055872.

The previous prime is 42523489. The next prime is 42523531. The reversal of 42523516 is 61532524.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3915 + ... + 10018.

Almost surely, 2^42523516 is an apocalyptic number.

It is an amenable number.

42523516 is an abundant number, since it is smaller than the sum of its proper divisors (43309924).

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

42523516 is a wasteful number, since it uses less digits than its factorization.

42523516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14053 (or 14051 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 42523516 is about 6521.0057506492. The cubic root of 42523516 is about 349.0409554485.

The spelling of 42523516 in words is "forty-two million, five hundred twenty-three thousand, five hundred sixteen".