51233350245 has 64 divisors (see below), whose sum is σ = 108212391936. Its totient is φ = 20039316480.

The previous prime is 51233350243. The next prime is 51233350247. The reversal of 51233350245 is 54205333215.

It is an interprime number because it is at equal distance from previous prime (51233350243) and next prime (51233350247).

It is not a de Polignac number, because 51233350245 - 2¹ = 51233350243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51233350243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1285009 + ... + 1324278.

It is an arithmetic number, because the mean of its divisors is an integer number (1690818624).

Almost surely, 2^51233350245 is an apocalyptic number.

51233350245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51233350245 is an abundant number, since it is smaller than the sum of its proper divisors (56979041691).

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

51233350245 is a wasteful number, since it uses less digits than its factorization.

51233350245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609330.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 51233350245 in words is "fifty-one billion, two hundred thirty-three million, three hundred fifty thousand, two hundred forty-five".