1555505052 has 24 divisors (see below), whose sum is σ = 3640970256. Its totient is φ = 516864768.

The previous prime is 1555505047. The next prime is 1555505069. The reversal of 1555505052 is 2505055551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200653 + ... + 208260.

It is an arithmetic number, because the mean of its divisors is an integer number (151707094).

Almost surely, 2^1555505052 is an apocalyptic number.

1555505052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1555505052 is an abundant number, since it is smaller than the sum of its proper divisors (2085465204).

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

1555505052 is a wasteful number, since it uses less digits than its factorization.

1555505052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409237 (or 409235 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 33.

The square root of 1555505052 is about 39439.8916327112. The cubic root of 1555505052 is about 1158.6630087523.

The spelling of 1555505052 in words is "one billion, five hundred fifty-five million, five hundred five thousand, fifty-two".