1555000032 has 24 divisors (see below), whose sum is σ = 4081875336. Its totient is φ = 518333312.

The previous prime is 1555000009. The next prime is 1555000037. The reversal of 1555000032 is 2300005551.

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

It is a junction number, because it is equal to n+sod(n) for n = 1554999972 and 1555000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555000037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8098863 + ... + 8099054.

It is an arithmetic number, because the mean of its divisors is an integer number (170078139).

Almost surely, 2^1555000032 is an apocalyptic number.

1555000032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1555000032 is an abundant number, since it is smaller than the sum of its proper divisors (2526875304).

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

1555000032 is a wasteful number, since it uses less digits than its factorization.

1555000032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16197930 (or 16197922 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 1555000032 is about 39433.4887120072. The cubic root of 1555000032 is about 1158.5376022529.

Adding to 1555000032 its reverse (2300005551), we get a palindrome (3855005583).

The spelling of 1555000032 in words is "one billion, five hundred fifty-five million, thirty-two", and thus it is an aban number.