1553222002 has 8 divisors (see below), whose sum is σ = 2359324800. Its totient is φ = 766780404.

The previous prime is 1553221973. The next prime is 1553222003. The reversal of 1553222002 is 2002223551.

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

It is not an unprimeable number, because it can be changed into a prime (1553222003) 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, 4915102 + ... + 4915417.

It is an arithmetic number, because the mean of its divisors is an integer number (294915600).

Almost surely, 2^1553222002 is an apocalyptic number.

1553222002 is a deficient number, since it is larger than the sum of its proper divisors (806102798).

1553222002 is an equidigital number, since it uses as much as digits as its factorization.

1553222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9830600.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1553222002 is about 39410.9375935158. The cubic root of 1553222002 is about 1158.0958658776.

Adding to 1553222002 its reverse (2002223551), we get a palindrome (3555445553).

The spelling of 1553222002 in words is "one billion, five hundred fifty-three million, two hundred twenty-two thousand, two".