1556002 has 8 divisors (see below), whose sum is σ = 2667456. Its totient is φ = 666852.

The previous prime is 1555999. The next prime is 1556003. The reversal of 1556002 is 2006551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1556002² = 4842284448008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1556003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55558 + ... + 55585.

It is an arithmetic number, because the mean of its divisors is an integer number (333432).

2^1556002 is an apocalyptic number.

1556002 is a deficient number, since it is larger than the sum of its proper divisors (1111454).

1556002 is a wasteful number, since it uses less digits than its factorization.

1556002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111152.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1556002 is about 1247.3980920300. The cubic root of 1556002 is about 115.8786384320.

The spelling of 1556002 in words is "one million, five hundred fifty-six thousand, two".