424698551 has 2 divisors, whose sum is σ = 424698552. Its totient is φ = 424698550.

The previous prime is 424698503. The next prime is 424698557. The reversal of 424698551 is 155896424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424698551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424698557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212349275 + 212349276.

It is an arithmetic number, because the mean of its divisors is an integer number (212349276).

Almost surely, 2^424698551 is an apocalyptic number.

424698551 is a deficient number, since it is larger than the sum of its proper divisors (1).

424698551 is an equidigital number, since it uses as much as digits as its factorization.

424698551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The square root of 424698551 is about 20608.2156190195. The cubic root of 424698551 is about 751.6694963591.

The spelling of 424698551 in words is "four hundred twenty-four million, six hundred ninety-eight thousand, five hundred fifty-one".