245550445 has 16 divisors (see below), whose sum is σ = 337966848. Its totient is φ = 167771520.

The previous prime is 245550421. The next prime is 245550449. The reversal of 245550445 is 544055542.

It is not a de Polignac number, because 245550445 - 2¹⁹ = 245026157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245550445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245550449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2649 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (21122928).

Almost surely, 2^245550445 is an apocalyptic number.

It is an amenable number.

245550445 is a deficient number, since it is larger than the sum of its proper divisors (92416403).

245550445 is a wasteful number, since it uses less digits than its factorization.

245550445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25260.

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

The square root of 245550445 is about 15670.0492979442. The cubic root of 245550445 is about 626.2007380876.

It can be divided in two parts, 2455 and 50445, that added together give a square (52900 = 230²).

The spelling of 245550445 in words is "two hundred forty-five million, five hundred fifty thousand, four hundred forty-five".