55651003 has 4 divisors (see below), whose sum is σ = 56191408. Its totient is φ = 55110600.

The previous prime is 55650977. The next prime is 55651033. The reversal of 55651003 is 30015655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55651003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55651033) 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, 270048 + ... + 270253.

It is an arithmetic number, because the mean of its divisors is an integer number (14047852).

Almost surely, 2^55651003 is an apocalyptic number.

55651003 is a deficient number, since it is larger than the sum of its proper divisors (540405).

55651003 is a wasteful number, since it uses less digits than its factorization.

55651003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540404.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 55651003 is about 7459.9599864879. The cubic root of 55651003 is about 381.7898092588.

Adding to 55651003 its reverse (30015655), we get a palindrome (85666658).

The spelling of 55651003 in words is "fifty-five million, six hundred fifty-one thousand, three".