248555431 has 2 divisors, whose sum is σ = 248555432. Its totient is φ = 248555430.

The previous prime is 248555429. The next prime is 248555441. The reversal of 248555431 is 134555842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248555431 - 2¹ = 248555429 is a prime.

It is a super-2 number, since 2×248555431² = 123559604559191522, which contains 22 as substring.

Together with 248555429, 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 (248555441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124277715 + 124277716.

It is an arithmetic number, because the mean of its divisors is an integer number (124277716).

Almost surely, 2^248555431 is an apocalyptic number.

248555431 is a deficient number, since it is larger than the sum of its proper divisors (1).

248555431 is an equidigital number, since it uses as much as digits as its factorization.

248555431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 37.

The square root of 248555431 is about 15765.6408369593. The cubic root of 248555431 is about 628.7448184420.

The spelling of 248555431 in words is "two hundred forty-eight million, five hundred fifty-five thousand, four hundred thirty-one".