55087895 has 4 divisors (see below), whose sum is σ = 66105480. Its totient is φ = 44070312.

The previous prime is 55087891. The next prime is 55087909. The reversal of 55087895 is 59878055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55087895 - 2² = 55087891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55087891) 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, 5508785 + ... + 5508794.

It is an arithmetic number, because the mean of its divisors is an integer number (16526370).

Almost surely, 2^55087895 is an apocalyptic number.

55087895 is a deficient number, since it is larger than the sum of its proper divisors (11017585).

55087895 is a wasteful number, since it uses less digits than its factorization.

55087895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017584.

The product of its (nonzero) digits is 504000, while the sum is 47.

The square root of 55087895 is about 7422.1220011530. The cubic root of 55087895 is about 380.4977203821.

The spelling of 55087895 in words is "fifty-five million, eighty-seven thousand, eight hundred ninety-five".