245531520425 has 12 divisors (see below), whose sum is σ = 304480209936. Its totient is φ = 196411587600.

The previous prime is 245531520413. The next prime is 245531520469. The reversal of 245531520425 is 524025135542.

It is not a de Polignac number, because 245531520425 - 2⁶ = 245531520361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34922 + ... + 701628.

It is an arithmetic number, because the mean of its divisors is an integer number (25373350828).

Almost surely, 2^245531520425 is an apocalyptic number.

245531520425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245531520425 is a deficient number, since it is larger than the sum of its proper divisors (58948689511).

245531520425 is a wasteful number, since it uses less digits than its factorization.

245531520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681448 (or 681443 counting only the distinct ones).

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

Adding to 245531520425 its reverse (524025135542), we get a palindrome (769556655967).

The spelling of 245531520425 in words is "two hundred forty-five billion, five hundred thirty-one million, five hundred twenty thousand, four hundred twenty-five".