245005554 has 16 divisors (see below), whose sum is σ = 490356000. Its totient is φ = 81611040.

The previous prime is 245005511. The next prime is 245005561. The reversal of 245005554 is 455500542.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4627 + ... + 22614.

It is an arithmetic number, because the mean of its divisors is an integer number (30647250).

Almost surely, 2^245005554 is an apocalyptic number.

245005554 is an abundant number, since it is smaller than the sum of its proper divisors (245350446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245005554 is a wasteful number, since it uses less digits than its factorization.

245005554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28745.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 245005554 is about 15652.6532575152. The cubic root of 245005554 is about 625.7372028559.

The spelling of 245005554 in words is "two hundred forty-five million, five thousand, five hundred fifty-four".