245521244 has 12 divisors (see below), whose sum is σ = 430264800. Its totient is φ = 122588448.

The previous prime is 245521223. The next prime is 245521261. The reversal of 245521244 is 442125542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39809 + ... + 45560.

It is an arithmetic number, because the mean of its divisors is an integer number (35855400).

Almost surely, 2^245521244 is an apocalyptic number.

It is an amenable number.

245521244 is a deficient number, since it is larger than the sum of its proper divisors (184743556).

245521244 is a wasteful number, since it uses less digits than its factorization.

245521244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86092 (or 86090 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 245521244 is about 15669.1175246087. The cubic root of 245521244 is about 626.1759143864.

Adding to 245521244 its reverse (442125542), we get a palindrome (687646786).

The spelling of 245521244 in words is "two hundred forty-five million, five hundred twenty-one thousand, two hundred forty-four".