245563490 has 16 divisors (see below), whose sum is σ = 442739520. Its totient is φ = 98064240.

The previous prime is 245563489. The next prime is 245563519. The reversal of 245563490 is 94365542.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13646 + ... + 26025.

It is an arithmetic number, because the mean of its divisors is an integer number (27671220).

Almost surely, 2^245563490 is an apocalyptic number.

245563490 is a deficient number, since it is larger than the sum of its proper divisors (197176030).

245563490 is a wasteful number, since it uses less digits than its factorization.

245563490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40297.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 245563490 is about 15670.4655323318. The cubic root of 245563490 is about 626.2118269754.

The spelling of 245563490 in words is "two hundred forty-five million, five hundred sixty-three thousand, four hundred ninety".