55070293 has 4 divisors (see below), whose sum is σ = 58309740. Its totient is φ = 51830848.

The previous prime is 55070287. The next prime is 55070297. The reversal of 55070293 is 39207055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39207055 = 5 ⋅7841411.

It can be written as a sum of positive squares in 2 ways, for example, as 46267204 + 8803089 = 6802^2 + 2967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55070293 is a prime.

It is a super-2 number, since 2×55070293² = 6065474342211698, 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 (55070297) 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, 1619698 + ... + 1619731.

It is an arithmetic number, because the mean of its divisors is an integer number (14577435).

Almost surely, 2^55070293 is an apocalyptic number.

It is an amenable number.

55070293 is a deficient number, since it is larger than the sum of its proper divisors (3239447).

55070293 is a wasteful number, since it uses less digits than its factorization.

55070293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239446.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 55070293 is about 7420.9361269317. The cubic root of 55070293 is about 380.4571897940.

The spelling of 55070293 in words is "fifty-five million, seventy thousand, two hundred ninety-three".