245545450 has 24 divisors (see below), whose sum is σ = 483581772. Its totient is φ = 92440320.

The previous prime is 245545439. The next prime is 245545463. The reversal of 245545450 is 54545542.

It can be written as a sum of positive squares in 6 ways, for example, as 188980009 + 56565441 = 13747^2 + 7521^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143589 + ... + 145288.

Almost surely, 2^245545450 is an apocalyptic number.

245545450 is a deficient number, since it is larger than the sum of its proper divisors (238036322).

245545450 is a wasteful number, since it uses less digits than its factorization.

245545450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288906 (or 288901 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The square root of 245545450 is about 15669.8899166523. The cubic root of 245545450 is about 626.1964919894.

The spelling of 245545450 in words is "two hundred forty-five million, five hundred forty-five thousand, four hundred fifty".