253450423345050 has 144 divisors (see below), whose sum is σ = 682523180408160. Its totient is φ = 67429498032000.

The previous prime is 253450423344983. The next prime is 253450423345069. The reversal of 253450423345050 is 50543324054352.

253450423345050 is a `hidden beast` number, since 2 + 5 + 34 + 50 + 42 + 33 + 450 + 50 = 666.

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 = 253450423344987 and 253450423345005.

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, 347719485 + ... + 348447615.

It is an arithmetic number, because the mean of its divisors is an integer number (4739744308390).

Almost surely, 2^{253450423345050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253450423345050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341261590204080).

253450423345050 is an abundant number, since it is smaller than the sum of its proper divisors (429072757063110).

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

253450423345050 is a wasteful number, since it uses less digits than its factorization.

253450423345050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729949 (or 729941 counting only the distinct ones).

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

The spelling of 253450423345050 in words is "two hundred fifty-three trillion, four hundred fifty billion, four hundred twenty-three million, three hundred forty-five thousand, fifty".