51602051 has 4 divisors (see below), whose sum is σ = 51918792. Its totient is φ = 51285312.

The previous prime is 51602029. The next prime is 51602059. The reversal of 51602051 is 15020615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15020615 = 5 ⋅3004123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51602051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51602059) 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, 158126 + ... + 158451.

It is an arithmetic number, because the mean of its divisors is an integer number (12979698).

Almost surely, 2^51602051 is an apocalyptic number.

51602051 is a deficient number, since it is larger than the sum of its proper divisors (316741).

51602051 is a wasteful number, since it uses less digits than its factorization.

51602051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316740.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51602051 is about 7183.4567584137. The cubic root of 51602051 is about 372.2965295706.

Adding to 51602051 its reverse (15020615), we get a palindrome (66622666).

The spelling of 51602051 in words is "fifty-one million, six hundred two thousand, fifty-one".