1555313252 has 6 divisors (see below), whose sum is σ = 2721798198. Its totient is φ = 777656624.

The previous prime is 1555313233. The next prime is 1555313281. The reversal of 1555313252 is 2523135551.

It can be written as a sum of positive squares in only one way, i.e., 1311453796 + 243859456 = 36214^2 + 15616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194414153 + ... + 194414160.

It is an arithmetic number, because the mean of its divisors is an integer number (453633033).

Almost surely, 2^1555313252 is an apocalyptic number.

It is an amenable number.

1555313252 is a deficient number, since it is larger than the sum of its proper divisors (1166484946).

1555313252 is a wasteful number, since it uses less digits than its factorization.

1555313252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388828317 (or 388828315 counting only the distinct ones).

The product of its digits is 22500, while the sum is 32.

The square root of 1555313252 is about 39437.4600094884. The cubic root of 1555313252 is about 1158.6153841990.

The spelling of 1555313252 in words is "one billion, five hundred fifty-five million, three hundred thirteen thousand, two hundred fifty-two".