245388355 has 4 divisors (see below), whose sum is σ = 294466032. Its totient is φ = 196310680.

The previous prime is 245388323. The next prime is 245388359. The reversal of 245388355 is 553883542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553883542 = 2 ⋅276941771.

It is not a de Polignac number, because 245388355 - 2⁵ = 245388323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245388359) 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 3 ways as a sum of consecutive naturals, for example, 24538831 + ... + 24538840.

It is an arithmetic number, because the mean of its divisors is an integer number (73616508).

Almost surely, 2^245388355 is an apocalyptic number.

245388355 is a deficient number, since it is larger than the sum of its proper divisors (49077677).

245388355 is an equidigital number, since it uses as much as digits as its factorization.

245388355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49077676.

The product of its digits is 576000, while the sum is 43.

The square root of 245388355 is about 15664.8764757339. The cubic root of 245388355 is about 626.0629208939.

The spelling of 245388355 in words is "two hundred forty-five million, three hundred eighty-eight thousand, three hundred fifty-five".