253450235322450 has 144 divisors (see below), whose sum is σ = 695461862234880. Its totient is φ = 66145141493760.

The previous prime is 253450235322421. The next prime is 253450235322467. The reversal of 253450235322450 is 54223532054352.

253450235322450 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 50 + 2 + 353 + 2 + 245 + 0 = 666.

253450235322450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 253450235322396 and 253450235322405.

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, 403206802 + ... + 403834898.

It is an arithmetic number, because the mean of its divisors is an integer number (4829596265520).

Almost surely, 2^{253450235322450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253450235322450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347730931117440).

253450235322450 is an abundant number, since it is smaller than the sum of its proper divisors (442011626912430).

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

253450235322450 is a wasteful number, since it uses less digits than its factorization.

253450235322450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647241 (or 647233 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 45.

The spelling of 253450235322450 in words is "two hundred fifty-three trillion, four hundred fifty billion, two hundred thirty-five million, three hundred twenty-two thousand, four hundred fifty".