51848431 has 2 divisors, whose sum is σ = 51848432. Its totient is φ = 51848430.

The previous prime is 51848429. The next prime is 51848443. The reversal of 51848431 is 13484815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51848431 - 2¹ = 51848429 is a prime.

It is a super-2 number, since 2×51848431² = 5376519594323522, which contains 22 as substring.

Together with 51848429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51840431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25924215 + 25924216.

It is an arithmetic number, because the mean of its divisors is an integer number (25924216).

Almost surely, 2^51848431 is an apocalyptic number.

51848431 is a deficient number, since it is larger than the sum of its proper divisors (1).

51848431 is an equidigital number, since it uses as much as digits as its factorization.

51848431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 51848431 is about 7200.5854623079. The cubic root of 51848431 is about 372.8881134129. Note that the first 3 decimals are identical.

The spelling of 51848431 in words is "fifty-one million, eight hundred forty-eight thousand, four hundred thirty-one".