245551298481 has 12 divisors (see below), whose sum is σ = 354778768708. Its totient is φ = 163657684224.

The previous prime is 245551298371. The next prime is 245551298513. The reversal of 245551298481 is 184892155542.

It is a happy number.

245551298481 is a `hidden beast` number, since 2 + 4 + 5 + 551 + 2 + 9 + 8 + 4 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 33620889600 + 211930408881 = 183360^2 + 460359^2 .

It is not a de Polignac number, because 245551298481 - 2¹¹ = 245551296433 is a prime.

It is a super-2 number, since 2×245551298481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245551298581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3562420 + ... + 3630693.

Almost surely, 2^245551298481 is an apocalyptic number.

It is an amenable number.

245551298481 is a deficient number, since it is larger than the sum of its proper divisors (109227470227).

245551298481 is a wasteful number, since it uses less digits than its factorization.

245551298481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196912 (or 7196909 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 54.

The spelling of 245551298481 in words is "two hundred forty-five billion, five hundred fifty-one million, two hundred ninety-eight thousand, four hundred eighty-one".