55927015 has 4 divisors (see below), whose sum is σ = 67112424. Its totient is φ = 44741608.

The previous prime is 55926971. The next prime is 55927019. The reversal of 55927015 is 51072955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51072955 = 5 ⋅10214591.

It is a cyclic number.

It is not a de Polignac number, because 55927015 - 2⁷ = 55926887 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 (55927019) 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, 5592697 + ... + 5592706.

It is an arithmetic number, because the mean of its divisors is an integer number (16778106).

Almost surely, 2^55927015 is an apocalyptic number.

55927015 is a deficient number, since it is larger than the sum of its proper divisors (11185409).

55927015 is a wasteful number, since it uses less digits than its factorization.

55927015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11185408.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55927015 is about 7478.4366681814. The cubic root of 55927015 is about 382.4199556259.

The spelling of 55927015 in words is "fifty-five million, nine hundred twenty-seven thousand, fifteen".