51290771 has 24 divisors (see below), whose sum is σ = 62401536. Its totient is φ = 41250960.

The previous prime is 51290761. The next prime is 51290773. The reversal of 51290771 is 17709215.

It is not a de Polignac number, because 51290771 - 2¹⁴ = 51274387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51290773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479300 + ... + 479406.

It is an arithmetic number, because the mean of its divisors is an integer number (2600064).

Almost surely, 2^51290771 is an apocalyptic number.

51290771 is a deficient number, since it is larger than the sum of its proper divisors (11110765).

51290771 is a wasteful number, since it uses less digits than its factorization.

51290771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 51290771 is about 7161.7575356891. The cubic root of 51290771 is about 371.5464155025.

Adding to 51290771 its reverse (17709215), we get a palindrome (68999986).

The spelling of 51290771 in words is "fifty-one million, two hundred ninety thousand, seven hundred seventy-one".