245067551 has 2 divisors, whose sum is σ = 245067552. Its totient is φ = 245067550.

The previous prime is 245067527. The next prime is 245067569. The reversal of 245067551 is 155760542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245067551 - 2¹⁰ = 245066527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245067521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122533775 + 122533776.

It is an arithmetic number, because the mean of its divisors is an integer number (122533776).

Almost surely, 2^245067551 is an apocalyptic number.

245067551 is a deficient number, since it is larger than the sum of its proper divisors (1).

245067551 is an equidigital number, since it uses as much as digits as its factorization.

245067551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 245067551 is about 15654.6335313223. The cubic root of 245067551 is about 625.7899779284.

The spelling of 245067551 in words is "two hundred forty-five million, sixty-seven thousand, five hundred fifty-one".