1055222451225 has 36 divisors (see below), whose sum is σ = 1890921942000. Its totient is φ = 562516934880.

The previous prime is 1055222451191. The next prime is 1055222451277. The reversal of 1055222451225 is 5221542225501.

1055222451225 is a `hidden beast` number, since 1 + 0 + 5 + 522 + 2 + 4 + 5 + 122 + 5 = 666.

It is not a de Polignac number, because 1055222451225 - 2⁷ = 1055222451097 is a prime.

It is a super-2 number, since 2×1055222451225² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055222451225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 644895 + ... + 1589444.

It is an arithmetic number, because the mean of its divisors is an integer number (52525609500).

Almost surely, 2^{1055222451225} is an apocalyptic number.

1055222451225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055222451225 is a deficient number, since it is larger than the sum of its proper divisors (835699490775).

1055222451225 is a wasteful number, since it uses less digits than its factorization.

1055222451225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236454 (or 2236446 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

Adding to 1055222451225 its reverse (5221542225501), we get a palindrome (6276764676726).

The spelling of 1055222451225 in words is "one trillion, fifty-five billion, two hundred twenty-two million, four hundred fifty-one thousand, two hundred twenty-five".