55072748 has 6 divisors (see below), whose sum is σ = 96377316. Its totient is φ = 27536372.

The previous prime is 55072747. The next prime is 55072753. The reversal of 55072748 is 84727055.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (55072747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6884090 + ... + 6884097.

It is an arithmetic number, because the mean of its divisors is an integer number (16062886).

Almost surely, 2^55072748 is an apocalyptic number.

It is an amenable number.

55072748 is a deficient number, since it is larger than the sum of its proper divisors (41304568).

55072748 is a wasteful number, since it uses less digits than its factorization.

55072748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13768191 (or 13768189 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 55072748 is about 7421.1015354865. The cubic root of 55072748 is about 380.4628432264.

The spelling of 55072748 in words is "fifty-five million, seventy-two thousand, seven hundred forty-eight".