51155335 has 64 divisors (see below), whose sum is σ = 82114560. Its totient is φ = 29652480.

The previous prime is 51155311. The next prime is 51155347. The reversal of 51155335 is 53355115.

It is not a de Polignac number, because 51155335 - 2¹¹ = 51153287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469261 + ... + 469369.

It is an arithmetic number, because the mean of its divisors is an integer number (1283040).

Almost surely, 2^51155335 is an apocalyptic number.

51155335 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51155335 is a deficient number, since it is larger than the sum of its proper divisors (30959225).

51155335 is a wasteful number, since it uses less digits than its factorization.

51155335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its digits is 5625, while the sum is 28.

The square root of 51155335 is about 7152.2957852706. The cubic root of 51155335 is about 371.2190978976.

The spelling of 51155335 in words is "fifty-one million, one hundred fifty-five thousand, three hundred thirty-five".