1125222552 has 24 divisors (see below), whose sum is σ = 3047477940. Its totient is φ = 375074160.

The previous prime is 1125222529. The next prime is 1125222557. The reversal of 1125222552 is 2552225211.

It is a happy number.

1125222552 is a `hidden beast` number, since 112 + 522 + 25 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1125222552² = 2532251583058785408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125222557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7813974 + ... + 7814117.

Almost surely, 2^1125222552 is an apocalyptic number.

1125222552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1125222552 is an abundant number, since it is smaller than the sum of its proper divisors (1922255388).

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

1125222552 is a wasteful number, since it uses less digits than its factorization.

1125222552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15628103 (or 15628096 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 1125222552 is about 33544.3371077742. The cubic root of 1125222552 is about 1040.1104887544.

Adding to 1125222552 its reverse (2552225211), we get a palindrome (3677447763).

The spelling of 1125222552 in words is "one billion, one hundred twenty-five million, two hundred twenty-two thousand, five hundred fifty-two".