245516020 has 24 divisors (see below), whose sum is σ = 516041064. Its totient is φ = 98119296.

The previous prime is 245516017. The next prime is 245516039. The reversal of 245516020 is 20615542.

245516020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117418896 + 128097124 = 10836^2 + 11318^2 .

It is a congruent number.

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, 20734 + ... + 30346.

It is an arithmetic number, because the mean of its divisors is an integer number (21501711).

Almost surely, 2^245516020 is an apocalyptic number.

245516020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245516020 is an abundant number, since it is smaller than the sum of its proper divisors (270525044).

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

245516020 is a wasteful number, since it uses less digits than its factorization.

245516020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10899 (or 10897 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 245516020 is about 15668.9508263955. The cubic root of 245516020 is about 626.1714732687.

The spelling of 245516020 in words is "two hundred forty-five million, five hundred sixteen thousand, twenty".