1555535552 has 14 divisors (see below), whose sum is σ = 3086765988. Its totient is φ = 777767744.

The previous prime is 1555535551. The next prime is 1555535557. The reversal of 1555535552 is 2555355551.

It is not an unprimeable number, because it can be changed into a prime (1555535551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12152558 + ... + 12152685.

Almost surely, 2^1555535552 is an apocalyptic number.

It is an amenable number.

1555535552 is a deficient number, since it is larger than the sum of its proper divisors (1531230436).

1555535552 is an equidigital number, since it uses as much as digits as its factorization.

1555535552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24305255 (or 24305245 counting only the distinct ones).

The product of its digits is 468750, while the sum is 41.

The square root of 1555535552 is about 39440.2782951642. The cubic root of 1555535552 is about 1158.6705816390.

The spelling of 1555535552 in words is "one billion, five hundred fifty-five million, five hundred thirty-five thousand, five hundred fifty-two".