42521614 has 4 divisors (see below), whose sum is σ = 63782424. Its totient is φ = 21260806.

The previous prime is 42521603. The next prime is 42521623. The reversal of 42521614 is 41612524.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10630402 + ... + 10630405.

It is an arithmetic number, because the mean of its divisors is an integer number (15945606).

Almost surely, 2^42521614 is an apocalyptic number.

42521614 is a deficient number, since it is larger than the sum of its proper divisors (21260810).

42521614 is a wasteful number, since it uses less digits than its factorization.

42521614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260809.

The product of its digits is 1920, while the sum is 25.

The square root of 42521614 is about 6520.8599126189. The cubic root of 42521614 is about 349.0357513806.

The spelling of 42521614 in words is "forty-two million, five hundred twenty-one thousand, six hundred fourteen".