55521002 has 8 divisors (see below), whose sum is σ = 87664800. Its totient is φ = 26299404.

The previous prime is 55521001. The next prime is 55521007. The reversal of 55521002 is 20012555.

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 (55521001) 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, 730502 + ... + 730577.

It is an arithmetic number, because the mean of its divisors is an integer number (10958100).

Almost surely, 2^55521002 is an apocalyptic number.

55521002 is a deficient number, since it is larger than the sum of its proper divisors (32143798).

55521002 is a wasteful number, since it uses less digits than its factorization.

55521002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461100.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55521002 is about 7451.2416414984. The cubic root of 55521002 is about 381.4922898837.

Adding to 55521002 its reverse (20012555), we get a palindrome (75533557).

The spelling of 55521002 in words is "fifty-five million, five hundred twenty-one thousand, two".