51035431 has 2 divisors, whose sum is σ = 51035432. Its totient is φ = 51035430.

The previous prime is 51035407. The next prime is 51035461. The reversal of 51035431 is 13453015.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51035431 - 2¹¹ = 51033383 is a prime.

It is a super-2 number, since 2×51035431² = 5209230434711522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51035461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25517715 + 25517716.

It is an arithmetic number, because the mean of its divisors is an integer number (25517716).

Almost surely, 2^51035431 is an apocalyptic number.

51035431 is a deficient number, since it is larger than the sum of its proper divisors (1).

51035431 is an equidigital number, since it uses as much as digits as its factorization.

51035431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51035431 is about 7143.9086640298. The cubic root of 51035431 is about 370.9288350701.

Adding to 51035431 its reverse (13453015), we get a palindrome (64488446).

The spelling of 51035431 in words is "fifty-one million, thirty-five thousand, four hundred thirty-one".