51300207 has 36 divisors (see below), whose sum is σ = 87657336. Its totient is φ = 28818720.

The previous prime is 51300199. The next prime is 51300211. The reversal of 51300207 is 70200315.

It is not a de Polignac number, because 51300207 - 2³ = 51300199 is a prime.

It is a super-2 number, since 2×51300207² = 5263422476485698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51300107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25948 + ... + 27854.

It is an arithmetic number, because the mean of its divisors is an integer number (2434926).

Almost surely, 2^51300207 is an apocalyptic number.

51300207 is a deficient number, since it is larger than the sum of its proper divisors (36357129).

51300207 is a wasteful number, since it uses less digits than its factorization.

51300207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 51300207 is about 7162.4162822333. The cubic root of 51300207 is about 371.5691986591.

The spelling of 51300207 in words is "fifty-one million, three hundred thousand, two hundred seven".