51601051 has 8 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 50117760.

The previous prime is 51601021. The next prime is 51601057. The reversal of 51601051 is 15010615.

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 51601051 - 2⁹ = 51600539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51601057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31806 + ... + 33388.

It is an arithmetic number, because the mean of its divisors is an integer number (6636168).

Almost surely, 2^51601051 is an apocalyptic number.

51601051 is a deficient number, since it is larger than the sum of its proper divisors (1488293).

51601051 is a wasteful number, since it uses less digits than its factorization.

51601051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 51601051 is about 7183.3871537040. The cubic root of 51601051 is about 372.2941246343.

Adding to 51601051 its reverse (15010615), we get a palindrome (66611666).

The spelling of 51601051 in words is "fifty-one million, six hundred one thousand, fifty-one".