51601277 has 24 divisors (see below), whose sum is σ = 65142144. Its totient is φ = 40008384.

The previous prime is 51601271. The next prime is 51601289. The reversal of 51601277 is 77210615.

It is not a de Polignac number, because 51601277 - 2⁸ = 51601021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51601271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62288 + ... + 63110.

It is an arithmetic number, because the mean of its divisors is an integer number (2714256).

Almost surely, 2^51601277 is an apocalyptic number.

It is an amenable number.

51601277 is a deficient number, since it is larger than the sum of its proper divisors (13540867).

51601277 is a wasteful number, since it uses less digits than its factorization.

51601277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 51601277 is about 7183.4028844274. The cubic root of 51601277 is about 372.2946681526.

The spelling of 51601277 in words is "fifty-one million, six hundred one thousand, two hundred seventy-seven".