245120532455 has 4 divisors (see below), whose sum is σ = 294144638952. Its totient is φ = 196096425960.

The previous prime is 245120532413. The next prime is 245120532497. The reversal of 245120532455 is 554235021542.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (245120532413) and next prime (245120532497).

It is a de Polignac number, because none of the positive numbers 2^k-245120532455 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 24512053241 + ... + 24512053250.

It is an arithmetic number, because the mean of its divisors is an integer number (73536159738).

Almost surely, 2^245120532455 is an apocalyptic number.

245120532455 is a deficient number, since it is larger than the sum of its proper divisors (49024106497).

245120532455 is an equidigital number, since it uses as much as digits as its factorization.

245120532455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49024106496.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 245120532455 its reverse (554235021542), we get a palindrome (799355553997).

The spelling of 245120532455 in words is "two hundred forty-five billion, one hundred twenty million, five hundred thirty-two thousand, four hundred fifty-five".