42203557 has 8 divisors (see below), whose sum is σ = 46497312. Its totient is φ = 37986000.

The previous prime is 42203549. The next prime is 42203599. The reversal of 42203557 is 75530224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42203557 - 2³ = 42203549 is a prime.

It is a super-2 number, since 2×42203557² = 3562280446904498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203527) 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, 17883 + ... + 20104.

It is an arithmetic number, because the mean of its divisors is an integer number (5812164).

Almost surely, 2^42203557 is an apocalyptic number.

It is an amenable number.

42203557 is a deficient number, since it is larger than the sum of its proper divisors (4293755).

42203557 is a wasteful number, since it uses less digits than its factorization.

42203557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38099.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 42203557 is about 6496.4264792269. The cubic root of 42203557 is about 348.1633228399.

It can be divided in two parts, 4220 and 3557, that added together give a palindrome (7777).

The spelling of 42203557 in words is "forty-two million, two hundred three thousand, five hundred fifty-seven".