51058655 has 4 divisors (see below), whose sum is σ = 61270392. Its totient is φ = 40846920.

The previous prime is 51058649. The next prime is 51058669. The reversal of 51058655 is 55685015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55685015 = 5 ⋅11137003.

It is not a de Polignac number, because 51058655 - 2⁴ = 51058639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105861 + ... + 5105870.

It is an arithmetic number, because the mean of its divisors is an integer number (15317598).

Almost surely, 2^51058655 is an apocalyptic number.

51058655 is a deficient number, since it is larger than the sum of its proper divisors (10211737).

51058655 is a wasteful number, since it uses less digits than its factorization.

51058655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211736.

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 51058655 is about 7145.5339198691. The cubic root of 51058655 is about 370.9850910523.

The spelling of 51058655 in words is "fifty-one million, fifty-eight thousand, six hundred fifty-five".