42663955 has 8 divisors (see below), whose sum is σ = 52387632. Its totient is φ = 33337248.

The previous prime is 42663947. The next prime is 42663961. The reversal of 42663955 is 55936624.

42663955 = 75² + 76² + ... + 504².

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 42663955 - 2³ = 42663947 is a prime.

It is a Duffinian 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, 99004 + ... + 99433.

It is an arithmetic number, because the mean of its divisors is an integer number (6548454).

Almost surely, 2^42663955 is an apocalyptic number.

42663955 is a deficient number, since it is larger than the sum of its proper divisors (9723677).

42663955 is a wasteful number, since it uses less digits than its factorization.

42663955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198485.

The product of its digits is 194400, while the sum is 40.

The square root of 42663955 is about 6531.7650753835. The cubic root of 42663955 is about 349.4247830532.

The spelling of 42663955 in words is "forty-two million, six hundred sixty-three thousand, nine hundred fifty-five".