245555460 has 72 divisors (see below), whose sum is σ = 749066136. Its totient is φ = 65111040.

The previous prime is 245555459. The next prime is 245555467. The reversal of 245555460 is 64555542.

245555460 is a `hidden beast` number, since 2 + 45 + 5 + 554 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 695556 + 244859904 = 834^2 + 15648^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (245555467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28812 + ... + 36348.

Almost surely, 2^245555460 is an apocalyptic number.

245555460 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 245555460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374533068).

245555460 is an abundant number, since it is smaller than the sum of its proper divisors (503510676).

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

245555460 is a wasteful number, since it uses less digits than its factorization.

245555460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733 (or 7728 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 245555460 is about 15670.2093157686. The cubic root of 245555460 is about 626.2050011292.

The spelling of 245555460 in words is "two hundred forty-five million, five hundred fifty-five thousand, four hundred sixty".