55072003 has 8 divisors (see below), whose sum is σ = 63802208. Its totient is φ = 46557504.

The previous prime is 55072001. The next prime is 55072063. The reversal of 55072003 is 30027055.

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

It is not a de Polignac number, because 55072003 - 2¹ = 55072001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55072001) 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, 53376 + ... + 54397.

It is an arithmetic number, because the mean of its divisors is an integer number (7975276).

Almost surely, 2^55072003 is an apocalyptic number.

55072003 is a deficient number, since it is larger than the sum of its proper divisors (8730205).

55072003 is a wasteful number, since it uses less digits than its factorization.

55072003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107853.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 55072003 is about 7421.0513406121. The cubic root of 55072003 is about 380.4611276404.

Adding to 55072003 its reverse (30027055), we get a palindrome (85099058).

The spelling of 55072003 in words is "fifty-five million, seventy-two thousand, three".