245550000 has 120 divisors (see below), whose sum is σ = 793355472. Its totient is φ = 65440000.

The previous prime is 245549981. The next prime is 245550031. The reversal of 245550000 is 55542.

245550000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149182 + ... + 150818.

Almost surely, 2^245550000 is an apocalyptic number.

245550000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396677736).

245550000 is an abundant number, since it is smaller than the sum of its proper divisors (547805472).

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

245550000 is an equidigital number, since it uses as much as digits as its factorization.

245550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 245550000 is about 15670.0350988758. The cubic root of 245550000 is about 626.2003598089.

The spelling of 245550000 in words is "two hundred forty-five million, five hundred fifty thousand".