55003272 has 16 divisors (see below), whose sum is σ = 137508240. Its totient is φ = 18334416.

The previous prime is 55003261. The next prime is 55003283. The reversal of 55003272 is 27230055.

It is an interprime number because it is at equal distance from previous prime (55003261) and next prime (55003283).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2291803 = 55003272 / (5 + 5 + 0 + 0 + 3 + 2 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145878 + ... + 1145925.

It is an arithmetic number, because the mean of its divisors is an integer number (8594265).

Almost surely, 2^55003272 is an apocalyptic number.

It is an amenable number.

55003272 is an abundant number, since it is smaller than the sum of its proper divisors (82504968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55003272 is a wasteful number, since it uses less digits than its factorization.

55003272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291812 (or 2291808 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 55003272 is about 7416.4190820099. The cubic root of 55003272 is about 380.3027872966.

The spelling of 55003272 in words is "fifty-five million, three thousand, two hundred seventy-two".