55156097 has 4 divisors (see below), whose sum is σ = 55366080. Its totient is φ = 54946116.

The previous prime is 55156081. The next prime is 55156117. The reversal of 55156097 is 79065155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55156097 - 2⁴ = 55156081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55156097.

It is not an unprimeable number, because it can be changed into a prime (55156027) 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, 104597 + ... + 105122.

It is an arithmetic number, because the mean of its divisors is an integer number (13841520).

Almost surely, 2^55156097 is an apocalyptic number.

It is an amenable number.

55156097 is a deficient number, since it is larger than the sum of its proper divisors (209983).

55156097 is a wasteful number, since it uses less digits than its factorization.

55156097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209982.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 55156097 is about 7426.7150881126. The cubic root of 55156097 is about 380.6546816855.

The spelling of 55156097 in words is "fifty-five million, one hundred fifty-six thousand, ninety-seven".