51814955 has 4 divisors (see below), whose sum is σ = 62177952. Its totient is φ = 41451960.

The previous prime is 51814949. The next prime is 51814969. The reversal of 51814955 is 55941815.

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

It is not a de Polignac number, because 51814955 - 2¹² = 51810859 is a prime.

It is a Duffinian 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, 5181491 + ... + 5181500.

It is an arithmetic number, because the mean of its divisors is an integer number (15544488).

Almost surely, 2^51814955 is an apocalyptic number.

51814955 is a deficient number, since it is larger than the sum of its proper divisors (10362997).

51814955 is a wasteful number, since it uses less digits than its factorization.

51814955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10362996.

The product of its digits is 36000, while the sum is 38.

The square root of 51814955 is about 7198.2605537727. The cubic root of 51814955 is about 372.8078442532.

The spelling of 51814955 in words is "fifty-one million, eight hundred fourteen thousand, nine hundred fifty-five".