55078724 has 12 divisors (see below), whose sum is σ = 96444348. Its totient is φ = 27523200.

The previous prime is 55078711. The next prime is 55078729. The reversal of 55078724 is 42787055.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 21808900 = 5768^2 + 4670^2 .

It is not an unprimeable number, because it can be changed into a prime (55078729) 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, 6944 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (8037029).

Almost surely, 2^55078724 is an apocalyptic number.

It is an amenable number.

55078724 is a deficient number, since it is larger than the sum of its proper divisors (41365624).

55078724 is a wasteful number, since it uses less digits than its factorization.

55078724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086 (or 8084 counting only the distinct ones).

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

The square root of 55078724 is about 7421.5041602090. The cubic root of 55078724 is about 380.4766041989.

The spelling of 55078724 in words is "fifty-five million, seventy-eight thousand, seven hundred twenty-four".