245500442550 has 144 divisors (see below), whose sum is σ = 731735933760. Its totient is φ = 58506456000.

The previous prime is 245500442533. The next prime is 245500442567. The reversal of 245500442550 is 55244005542.

245500442550 is a `hidden beast` number, since 2 + 45 + 500 + 44 + 25 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (245500442533) and next prime (245500442567).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 128256 + ... + 712355.

It is an arithmetic number, because the mean of its divisors is an integer number (5081499540).

Almost surely, 2^245500442550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245500442550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365867966880).

245500442550 is an abundant number, since it is smaller than the sum of its proper divisors (486235491210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245500442550 is a wasteful number, since it uses less digits than its factorization.

245500442550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840699 (or 840691 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 245500442550 in words is "two hundred forty-five billion, five hundred million, four hundred forty-two thousand, five hundred fifty".