55615427 has 8 divisors (see below), whose sum is σ = 64509696. Its totient is φ = 46958472.

The previous prime is 55615423. The next prime is 55615453. The reversal of 55615427 is 72451655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55615427 - 2² = 55615423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55615423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58823 + ... + 59760.

It is an arithmetic number, because the mean of its divisors is an integer number (8063712).

Almost surely, 2^55615427 is an apocalyptic number.

55615427 is a deficient number, since it is larger than the sum of its proper divisors (8894269).

55615427 is a wasteful number, since it uses less digits than its factorization.

55615427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118657.

The product of its digits is 42000, while the sum is 35.

The square root of 55615427 is about 7457.5751420955. The cubic root of 55615427 is about 381.7084363643.

The spelling of 55615427 in words is "fifty-five million, six hundred fifteen thousand, four hundred twenty-seven".