51236955 has 160 divisors (see below), whose sum is σ = 120434688. Its totient is φ = 20217600.

The previous prime is 51236953. The next prime is 51236981. The reversal of 51236955 is 55963215.

51236955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51236955 - 2¹ = 51236953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51236953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 966709 + ... + 966761.

Almost surely, 2^51236955 is an apocalyptic number.

51236955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51236955 is an abundant number, since it is smaller than the sum of its proper divisors (69197733).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51236955 is a wasteful number, since it uses less digits than its factorization.

51236955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 110 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 51236955 is about 7157.9993713327. Note that the first 3 decimals coincide. The cubic root of 51236955 is about 371.4164237010.

The spelling of 51236955 in words is "fifty-one million, two hundred thirty-six thousand, nine hundred fifty-five".