51272126 has 4 divisors (see below), whose sum is σ = 76908192. Its totient is φ = 25636062.

The previous prime is 51272107. The next prime is 51272149. The reversal of 51272126 is 62127215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62127215 = 5 ⋅12425443.

It is a junction number, because it is equal to n+sod(n) for n = 51272095 and 51272104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12818030 + ... + 12818033.

It is an arithmetic number, because the mean of its divisors is an integer number (19227048).

Almost surely, 2^51272126 is an apocalyptic number.

51272126 is a deficient number, since it is larger than the sum of its proper divisors (25636066).

51272126 is a wasteful number, since it uses less digits than its factorization.

51272126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25636065.

The product of its digits is 1680, while the sum is 26.

The square root of 51272126 is about 7160.4557117547. The cubic root of 51272126 is about 371.5013890623.

The spelling of 51272126 in words is "fifty-one million, two hundred seventy-two thousand, one hundred twenty-six".