1200255532 has 48 divisors (see below), whose sum is σ = 2440811520. Its totient is φ = 505814400.

The previous prime is 1200255503. The next prime is 1200255533. The reversal of 1200255532 is 2355520021.

It is a happy number.

It is a super-2 number, since 2×1200255532² = 2881226684193206048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200255497 and 1200255506.

It is not an unprimeable number, because it can be changed into a prime (1200255533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620607 + ... + 622537.

It is an arithmetic number, because the mean of its divisors is an integer number (50850240).

Almost surely, 2^1200255532 is an apocalyptic number.

It is an amenable number.

1200255532 is an abundant number, since it is smaller than the sum of its proper divisors (1240555988).

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

1200255532 is a wasteful number, since it uses less digits than its factorization.

1200255532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1200255532 is about 34644.7042417741. The cubic root of 1200255532 is about 1062.7339925152.

Adding to 1200255532 its reverse (2355520021), we get a palindrome (3555775553).

The spelling of 1200255532 in words is "one billion, two hundred million, two hundred fifty-five thousand, five hundred thirty-two".