55081751 has 8 divisors (see below), whose sum is σ = 59311440. Its totient is φ = 50962048.

The previous prime is 55081709. The next prime is 55081783. The reversal of 55081751 is 15718055.

It is a happy number.

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 55081751 - 2⁶ = 55081687 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 (55083751) 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, 26456 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (7413930).

Almost surely, 2^55081751 is an apocalyptic number.

55081751 is a deficient number, since it is larger than the sum of its proper divisors (4229689).

55081751 is a wasteful number, since it uses less digits than its factorization.

55081751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54993.

The product of its (nonzero) digits is 7000, while the sum is 32.

The square root of 55081751 is about 7421.7080918074. The cubic root of 55081751 is about 380.4835741109.

The spelling of 55081751 in words is "fifty-five million, eighty-one thousand, seven hundred fifty-one".