5612278391 has 4 divisors (see below), whose sum is σ = 5942412432. Its totient is φ = 5282144352.

The previous prime is 5612278381. The next prime is 5612278393. The reversal of 5612278391 is 1938722165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1938722165 = 5 ⋅387744433.

It is a cyclic number.

It is not a de Polignac number, because 5612278391 - 2³⁰ = 4538536567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5612278393) 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, 165066995 + ... + 165067028.

It is an arithmetic number, because the mean of its divisors is an integer number (1485603108).

Almost surely, 2^5612278391 is an apocalyptic number.

5612278391 is a deficient number, since it is larger than the sum of its proper divisors (330134041).

5612278391 is a wasteful number, since it uses less digits than its factorization.

5612278391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330134040.

The product of its digits is 181440, while the sum is 44.

The square root of 5612278391 is about 74915.1412666358. The cubic root of 5612278391 is about 1777.1049171010.

The spelling of 5612278391 in words is "five billion, six hundred twelve million, two hundred seventy-eight thousand, three hundred ninety-one".