225551257078 has 16 divisors (see below), whose sum is σ = 386874032544. Its totient is φ = 96611140800.

The previous prime is 225551257049. The next prime is 225551257081. The reversal of 225551257078 is 870752155522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4447525 + ... + 4497952.

It is an arithmetic number, because the mean of its divisors is an integer number (24179627034).

Almost surely, 2^225551257078 is an apocalyptic number.

225551257078 is a deficient number, since it is larger than the sum of its proper divisors (161322775466).

225551257078 is a wasteful number, since it uses less digits than its factorization.

225551257078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947287.

The product of its (nonzero) digits is 1960000, while the sum is 49.

The spelling of 225551257078 in words is "two hundred twenty-five billion, five hundred fifty-one million, two hundred fifty-seven thousand, seventy-eight".