42213526 has 4 divisors (see below), whose sum is σ = 63320292. Its totient is φ = 21106762.

The previous prime is 42213517. The next prime is 42213553. The reversal of 42213526 is 62531224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42213526.

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, 10553380 + ... + 10553383.

It is an arithmetic number, because the mean of its divisors is an integer number (15830073).

Almost surely, 2^42213526 is an apocalyptic number.

42213526 is a deficient number, since it is larger than the sum of its proper divisors (21106766).

42213526 is a wasteful number, since it uses less digits than its factorization.

42213526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21106765.

The product of its digits is 2880, while the sum is 25.

The square root of 42213526 is about 6497.1937018993. The cubic root of 42213526 is about 348.1907341702.

The spelling of 42213526 in words is "forty-two million, two hundred thirteen thousand, five hundred twenty-six".