245355251242 has 8 divisors (see below), whose sum is σ = 368048566656. Its totient is φ = 122672395692.

The previous prime is 245355251231. The next prime is 245355251243. The reversal of 245355251242 is 242152553542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 245355251195 and 245355251204.

It is not an unprimeable number, because it can be changed into a prime (245355251243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556058 + ... + 2650309.

It is an arithmetic number, because the mean of its divisors is an integer number (46006070832).

Almost surely, 2^245355251242 is an apocalyptic number.

245355251242 is a deficient number, since it is larger than the sum of its proper divisors (122693315414).

245355251242 is a wasteful number, since it uses less digits than its factorization.

245355251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229932.

The product of its digits is 480000, while the sum is 40.

The spelling of 245355251242 in words is "two hundred forty-five billion, three hundred fifty-five million, two hundred fifty-one thousand, two hundred forty-two".