1555105233 has 16 divisors (see below), whose sum is σ = 2360318976. Its totient is φ = 901509840.

The previous prime is 1555105229. The next prime is 1555105247. The reversal of 1555105233 is 3325015551.

It is not a de Polignac number, because 1555105233 - 2² = 1555105229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1555105233.

It is not an unprimeable number, because it can be changed into a prime (1555105213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023685 + ... + 1025202.

It is an arithmetic number, because the mean of its divisors is an integer number (147519936).

Almost surely, 2^1555105233 is an apocalyptic number.

It is an amenable number.

1555105233 is a deficient number, since it is larger than the sum of its proper divisors (805213743).

1555105233 is a wasteful number, since it uses less digits than its factorization.

1555105233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048924.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1555105233 is about 39434.8225937432. The cubic root of 1555105233 is about 1158.5637279900.

The spelling of 1555105233 in words is "one billion, five hundred fifty-five million, one hundred five thousand, two hundred thirty-three".