55515003 has 16 divisors (see below), whose sum is σ = 74977056. Its totient is φ = 36535040.

The previous prime is 55515001. The next prime is 55515011. The reversal of 55515003 is 30051555.

It is a cyclic number.

It is not a de Polignac number, because 55515003 - 2¹ = 55515001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55515001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120193 + ... + 120653.

It is an arithmetic number, because the mean of its divisors is an integer number (4686066).

Almost surely, 2^55515003 is an apocalyptic number.

55515003 is a deficient number, since it is larger than the sum of its proper divisors (19462053).

55515003 is a wasteful number, since it uses less digits than its factorization.

55515003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55515003 is about 7450.8390802647. The cubic root of 55515003 is about 381.4785494095.

Adding to 55515003 its reverse (30051555), we get a palindrome (85566558).

The spelling of 55515003 in words is "fifty-five million, five hundred fifteen thousand, three".