55087951 has 4 divisors (see below), whose sum is σ = 55113400. Its totient is φ = 55062504.

The previous prime is 55087927. The next prime is 55088009. The reversal of 55087951 is 15978055.

55087951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15978055 = 5 ⋅3195611.

It is a cyclic number.

It is not a de Polignac number, because 55087951 - 2⁵ = 55087919 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 (55037951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (13778350).

Almost surely, 2^55087951 is an apocalyptic number.

55087951 is a deficient number, since it is larger than the sum of its proper divisors (25449).

55087951 is a wasteful number, since it uses less digits than its factorization.

55087951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25448.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 55087951 is about 7422.1257736581. The cubic root of 55087951 is about 380.4978493147.

The spelling of 55087951 in words is "fifty-five million, eighty-seven thousand, nine hundred fifty-one".