51225214 has 4 divisors (see below), whose sum is σ = 76837824. Its totient is φ = 25612606.

The previous prime is 51225179. The next prime is 51225227. The reversal of 51225214 is 41252215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41252215 = 5 ⋅8250443.

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, 12806302 + ... + 12806305.

It is an arithmetic number, because the mean of its divisors is an integer number (19209456).

Almost surely, 2^51225214 is an apocalyptic number.

51225214 is a deficient number, since it is larger than the sum of its proper divisors (25612610).

51225214 is a wasteful number, since it uses less digits than its factorization.

51225214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25612609.

The product of its digits is 800, while the sum is 22.

The square root of 51225214 is about 7157.1791929503. The cubic root of 51225214 is about 371.3880513842.

Adding to 51225214 its reverse (41252215), we get a palindrome (92477429).

The spelling of 51225214 in words is "fifty-one million, two hundred twenty-five thousand, two hundred fourteen".