51853031 has 2 divisors, whose sum is σ = 51853032. Its totient is φ = 51853030.

The previous prime is 51853019. The next prime is 51853099. The reversal of 51853031 is 13035815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51853031 - 2⁶ = 51852967 is a prime.

It is a super-2 number, since 2×51853031² = 5377473647773922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51853531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25926515 + 25926516.

It is an arithmetic number, because the mean of its divisors is an integer number (25926516).

Almost surely, 2^51853031 is an apocalyptic number.

51853031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51853031 is an equidigital number, since it uses as much as digits as its factorization.

51853031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51853031 is about 7200.9048736947. The cubic root of 51853031 is about 372.8991406486.

Adding to 51853031 its reverse (13035815), we get a palindrome (64888846).

The spelling of 51853031 in words is "fifty-one million, eight hundred fifty-three thousand, thirty-one".