1555151255 has 16 divisors (see below), whose sum is σ = 2190423360. Its totient is φ = 1037567232.

The previous prime is 1555151219. The next prime is 1555151267. The reversal of 1555151255 is 5521515551.

It is a cyclic number.

It is not a de Polignac number, because 1555151255 - 2²⁸ = 1286715799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599150 + ... + 601739.

It is an arithmetic number, because the mean of its divisors is an integer number (136901460).

Almost surely, 2^1555151255 is an apocalyptic number.

1555151255 is a deficient number, since it is larger than the sum of its proper divisors (635272105).

1555151255 is a wasteful number, since it uses less digits than its factorization.

1555151255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200938.

The product of its digits is 31250, while the sum is 35.

The square root of 1555151255 is about 39435.4061092313. The cubic root of 1555151255 is about 1158.5751567758.

The spelling of 1555151255 in words is "one billion, five hundred fifty-five million, one hundred fifty-one thousand, two hundred fifty-five".