225021246143550 has 96 divisors (see below), whose sum is σ = 559454512262400. Its totient is φ = 59854951752960.

The previous prime is 225021246143513. The next prime is 225021246143581. The reversal of 225021246143550 is 55341642120522.

It is a super-2 number, since 2×225021246143550² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 981914881 + ... + 982144019.

It is an arithmetic number, because the mean of its divisors is an integer number (5827651169400).

Almost surely, 2^{225021246143550} is an apocalyptic number.

225021246143550 is an abundant number, since it is smaller than the sum of its proper divisors (334433266118850).

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

225021246143550 is a wasteful number, since it uses less digits than its factorization.

225021246143550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245570 (or 245565 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 225021246143550 in words is "two hundred twenty-five trillion, twenty-one billion, two hundred forty-six million, one hundred forty-three thousand, five hundred fifty".