245621552 has 20 divisors (see below), whose sum is σ = 519155016. Its totient is φ = 111646080.

The previous prime is 245621549. The next prime is 245621573. The reversal of 245621552 is 255126542.

245621552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697613 + ... + 697964.

Almost surely, 2^245621552 is an apocalyptic number.

245621552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245621552 is an abundant number, since it is smaller than the sum of its proper divisors (273533464).

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

245621552 is a wasteful number, since it uses less digits than its factorization.

245621552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395596 (or 1395590 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 245621552 is about 15672.3180161711. The cubic root of 245621552 is about 626.2611777506.

The spelling of 245621552 in words is "two hundred forty-five million, six hundred twenty-one thousand, five hundred fifty-two".