1205056552 has 128 divisors (see below), whose sum is σ = 2785904640. Its totient is φ = 477757440.

The previous prime is 1205056493. The next prime is 1205056603. The reversal of 1205056552 is 2556505021.

It is a super-2 number, since 2×1205056552² = 2904322587036257408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4688808 + ... + 4689064.

It is an arithmetic number, because the mean of its divisors is an integer number (21764880).

Almost surely, 2^1205056552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1205056552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392952320).

1205056552 is an abundant number, since it is smaller than the sum of its proper divisors (1580848088).

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

1205056552 is a wasteful number, since it uses less digits than its factorization.

1205056552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1205056552 is about 34713.9244684320. The cubic root of 1205056552 is about 1064.1490854279.

The spelling of 1205056552 in words is "one billion, two hundred five million, fifty-six thousand, five hundred fifty-two".