51015055 has 16 divisors (see below), whose sum is σ = 75345984. Its totient is φ = 32290560.

The previous prime is 51015047. The next prime is 51015061. The reversal of 51015055 is 55051015.

It is not a de Polignac number, because 51015055 - 2³ = 51015047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55606 + ... + 56515.

It is an arithmetic number, because the mean of its divisors is an integer number (4709124).

Almost surely, 2^51015055 is an apocalyptic number.

51015055 is a deficient number, since it is larger than the sum of its proper divisors (24330929).

51015055 is a wasteful number, since it uses less digits than its factorization.

51015055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112146.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 51015055 is about 7142.4824115989. The cubic root of 51015055 is about 370.8794638008.

The spelling of 51015055 in words is "fifty-one million, fifteen thousand, fifty-five".