1555799948 has 72 divisors (see below), whose sum is σ = 3087437472. Its totient is φ = 682080256.

The previous prime is 1555799941. The next prime is 1555799951. The reversal of 1555799948 is 8499975551.

It is not an unprimeable number, because it can be changed into a prime (1555799941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11356136 + ... + 11356272.

It is an arithmetic number, because the mean of its divisors is an integer number (42881076).

Almost surely, 2^1555799948 is an apocalyptic number.

It is an amenable number.

1555799948 is a deficient number, since it is larger than the sum of its proper divisors (1531637524).

1555799948 is a wasteful number, since it uses less digits than its factorization.

1555799948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 232 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 62.

The square root of 1555799948 is about 39443.6300053634. The cubic root of 1555799948 is about 1158.7362247357.

The spelling of 1555799948 in words is "one billion, five hundred fifty-five million, seven hundred ninety-nine thousand, nine hundred forty-eight".