42553994 has 8 divisors (see below), whose sum is σ = 72949728. Its totient is φ = 18237420.

The previous prime is 42553993. The next prime is 42553999. The reversal of 42553994 is 49935524.

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

It is not an unprimeable number, because it can be changed into a prime (42553993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519772 + ... + 1519799.

It is an arithmetic number, because the mean of its divisors is an integer number (9118716).

Almost surely, 2^42553994 is an apocalyptic number.

42553994 is a deficient number, since it is larger than the sum of its proper divisors (30395734).

42553994 is a wasteful number, since it uses less digits than its factorization.

42553994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039580.

The product of its digits is 194400, while the sum is 41.

The square root of 42553994 is about 6523.3422415201. The cubic root of 42553994 is about 349.1243252377.

The spelling of 42553994 in words is "forty-two million, five hundred fifty-three thousand, nine hundred ninety-four".