1555653255 has 64 divisors (see below), whose sum is σ = 2856591360. Its totient is φ = 716138496.

The previous prime is 1555653217. The next prime is 1555653317. The reversal of 1555653255 is 5523565551.

It is not a de Polignac number, because 1555653255 - 2⁹ = 1555652743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 538906 + ... + 541784.

It is an arithmetic number, because the mean of its divisors is an integer number (44634240).

Almost surely, 2^1555653255 is an apocalyptic number.

1555653255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1555653255 is a deficient number, since it is larger than the sum of its proper divisors (1300938105).

1555653255 is a wasteful number, since it uses less digits than its factorization.

1555653255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its digits is 562500, while the sum is 42.

The square root of 1555653255 is about 39441.7704344011. The cubic root of 1555653255 is about 1158.6998053499.

The spelling of 1555653255 in words is "one billion, five hundred fifty-five million, six hundred fifty-three thousand, two hundred fifty-five".