51325426 has 4 divisors (see below), whose sum is σ = 76988142. Its totient is φ = 25662712.

The previous prime is 51325423. The next prime is 51325433. The reversal of 51325426 is 62452315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62452315 = 5 ⋅12490463.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 9916201 = 6435^2 + 3149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51325394 and 51325403.

It is not an unprimeable number, because it can be changed into a prime (51325423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12831355 + ... + 12831358.

Almost surely, 2^51325426 is an apocalyptic number.

51325426 is a deficient number, since it is larger than the sum of its proper divisors (25662716).

51325426 is a wasteful number, since it uses less digits than its factorization.

51325426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662715.

The product of its digits is 7200, while the sum is 28.

The square root of 51325426 is about 7164.1765751550. The cubic root of 51325426 is about 371.6300760517.

The spelling of 51325426 in words is "fifty-one million, three hundred twenty-five thousand, four hundred twenty-six".