245554887 has 4 divisors (see below), whose sum is σ = 327406520. Its totient is φ = 163703256.

The previous prime is 245554867. The next prime is 245554901. The reversal of 245554887 is 788455542.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245554887 - 2⁶ = 245554823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245554807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40925812 + ... + 40925817.

It is an arithmetic number, because the mean of its divisors is an integer number (81851630).

Almost surely, 2^245554887 is an apocalyptic number.

245554887 is a deficient number, since it is larger than the sum of its proper divisors (81851633).

245554887 is an equidigital number, since it uses as much as digits as its factorization.

245554887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81851632.

The product of its digits is 1792000, while the sum is 48.

The square root of 245554887 is about 15670.1910326582. The cubic root of 245554887 is about 626.2045140489.

The spelling of 245554887 in words is "two hundred forty-five million, five hundred fifty-four thousand, eight hundred eighty-seven".