55003031 has 8 divisors (see below), whose sum is σ = 55482240. Its totient is φ = 54526392.

The previous prime is 55003027. The next prime is 55003033. The reversal of 55003031 is 13030055.

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

It is a cyclic number.

It is not a de Polignac number, because 55003031 - 2² = 55003027 is a prime.

It is a super-2 number, since 2×55003031² = 6050666838373922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55003033) 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, 74060 + ... + 74798.

It is an arithmetic number, because the mean of its divisors is an integer number (6935280).

Almost surely, 2^55003031 is an apocalyptic number.

55003031 is a deficient number, since it is larger than the sum of its proper divisors (479209).

55003031 is a wasteful number, since it uses less digits than its factorization.

55003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 55003031 is about 7416.4028342587. The cubic root of 55003031 is about 380.3022318562.

Adding to 55003031 its reverse (13030055), we get a palindrome (68033086).

The spelling of 55003031 in words is "fifty-five million, three thousand, thirty-one".