42663051 has 16 divisors (see below), whose sum is σ = 63338400. Its totient is φ = 28381824.

The previous prime is 42663029. The next prime is 42663053. The reversal of 42663051 is 15036624.

42663051 is a `hidden beast` number, since 4 + 26 + 630 + 5 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-42663051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42663053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13975 + ... + 16751.

It is an arithmetic number, because the mean of its divisors is an integer number (3958650).

Almost surely, 2^42663051 is an apocalyptic number.

42663051 is a deficient number, since it is larger than the sum of its proper divisors (20675349).

42663051 is a wasteful number, since it uses less digits than its factorization.

42663051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42663051 is about 6531.6958747327. The cubic root of 42663051 is about 349.4223150664.

Adding to 42663051 its reverse (15036624), we get a palindrome (57699675).

The spelling of 42663051 in words is "forty-two million, six hundred sixty-three thousand, fifty-one".