51607042 has 8 divisors (see below), whose sum is σ = 77812236. Its totient is φ = 25669632.

The previous prime is 51606991. The next prime is 51607043. The reversal of 51607042 is 24070615.

It can be written as a sum of positive squares in 2 ways, for example, as 43705321 + 7901721 = 6611^2 + 2811^2 .

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

It is a super-3 number, since 3×51607042³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51606998 and 51607016.

It is not an unprimeable number, because it can be changed into a prime (51607043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66463 + ... + 67234.

Almost surely, 2^51607042 is an apocalyptic number.

51607042 is a deficient number, since it is larger than the sum of its proper divisors (26205194).

51607042 is a wasteful number, since it uses less digits than its factorization.

51607042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133892.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51607042 is about 7183.8041454372. The cubic root of 51607042 is about 372.3085321431.

Adding to 51607042 its reverse (24070615), we get a palindrome (75677657).

The spelling of 51607042 in words is "fifty-one million, six hundred seven thousand, forty-two".