51125211 has 12 divisors (see below), whose sum is σ = 75099960. Its totient is φ = 33505440.

The previous prime is 51125201. The next prime is 51125279. The reversal of 51125211 is 11252115.

It is not a de Polignac number, because 51125211 - 2¹⁸ = 50863067 is a prime.

It is a super-2 number, since 2×51125211² = 5227574399589042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51125201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47610 + ... + 48671.

It is an arithmetic number, because the mean of its divisors is an integer number (6258330).

Almost surely, 2^51125211 is an apocalyptic number.

51125211 is a deficient number, since it is larger than the sum of its proper divisors (23974749).

51125211 is a wasteful number, since it uses less digits than its factorization.

51125211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96346 (or 96343 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 51125211 is about 7150.1895779063. The cubic root of 51125211 is about 371.1462166111.

Adding to 51125211 its reverse (11252115), we get a palindrome (62377326).

The spelling of 51125211 in words is "fifty-one million, one hundred twenty-five thousand, two hundred eleven".