55501003 has 8 divisors (see below), whose sum is σ = 58178736. Its totient is φ = 52886400.

The previous prime is 55500989. The next prime is 55501027. The reversal of 55501003 is 30010555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55501003 is a prime.

It is a super-2 number, since 2×55501003² = 6160722668012018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55501403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13978 + ... + 17503.

It is an arithmetic number, because the mean of its divisors is an integer number (7272342).

Almost surely, 2^55501003 is an apocalyptic number.

55501003 is a deficient number, since it is larger than the sum of its proper divisors (2677733).

55501003 is a wasteful number, since it uses less digits than its factorization.

55501003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 55501003 is about 7449.8995295239. The cubic root of 55501003 is about 381.4464791077.

Adding to 55501003 its reverse (30010555), we get a palindrome (85511558).

The spelling of 55501003 in words is "fifty-five million, five hundred one thousand, three".