51343955 has 16 divisors (see below), whose sum is σ = 67005120. Its totient is φ = 37542528.

The previous prime is 51343939. The next prime is 51343969. The reversal of 51343955 is 55934315.

It is a cyclic number.

It is not a de Polignac number, because 51343955 - 2⁴ = 51343939 is a prime.

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, 2861 + ... + 10529.

It is an arithmetic number, because the mean of its divisors is an integer number (4187820).

Almost surely, 2^51343955 is an apocalyptic number.

51343955 is a deficient number, since it is larger than the sum of its proper divisors (15661165).

51343955 is a wasteful number, since it uses less digits than its factorization.

51343955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790.

The product of its digits is 40500, while the sum is 35.

The square root of 51343955 is about 7165.4696287124. The cubic root of 51343955 is about 371.6747914150.

The spelling of 51343955 in words is "fifty-one million, three hundred forty-three thousand, nine hundred fifty-five".