155552002 has 4 divisors (see below), whose sum is σ = 233328006. Its totient is φ = 77776000.

The previous prime is 155551997. The next prime is 155552011. The reversal of 155552002 is 200255551.

It is a happy number.

155552002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200255551 = 5477 ⋅36563.

It can be written as a sum of positive squares in only one way, i.e., 115369081 + 40182921 = 10741^2 + 6339^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38887999 + ... + 38888002.

Almost surely, 2^155552002 is an apocalyptic number.

155552002 is a deficient number, since it is larger than the sum of its proper divisors (77776004).

155552002 is an equidigital number, since it uses as much as digits as its factorization.

155552002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77776003.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 155552002 is about 12472.0488292822. The cubic root of 155552002 is about 537.8054533520.

The spelling of 155552002 in words is "one hundred fifty-five million, five hundred fifty-two thousand, two".