1200256552 has 32 divisors (see below), whose sum is σ = 2477613600. Its totient is φ = 540561600.

The previous prime is 1200256513. The next prime is 1200256567. The reversal of 1200256552 is 2556520021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200256552.

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, 52974 + ... + 72157.

It is an arithmetic number, because the mean of its divisors is an integer number (77425425).

Almost surely, 2^1200256552 is an apocalyptic number.

It is an amenable number.

1200256552 is an abundant number, since it is smaller than the sum of its proper divisors (1277357048).

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

1200256552 is a wasteful number, since it uses less digits than its factorization.

1200256552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125257 (or 125253 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1200256552 is about 34644.7189626356. The cubic root of 1200256552 is about 1062.7342935590.

Adding to 1200256552 its reverse (2556520021), we get a palindrome (3756776573).

It can be divided in two parts, 1200 and 256552, that added together give a palindrome (257752).

The spelling of 1200256552 in words is "one billion, two hundred million, two hundred fifty-six thousand, five hundred fifty-two".