51225260 has 12 divisors (see below), whose sum is σ = 107573088. Its totient is φ = 20490096.

The previous prime is 51225227. The next prime is 51225269. The reversal of 51225260 is 6252215.

It is not an unprimeable number, because it can be changed into a prime (51225269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280612 + ... + 1280651.

It is an arithmetic number, because the mean of its divisors is an integer number (8964424).

Almost surely, 2^51225260 is an apocalyptic number.

It is an amenable number.

51225260 is an abundant number, since it is smaller than the sum of its proper divisors (56347828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51225260 is a wasteful number, since it uses less digits than its factorization.

51225260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561272 (or 2561270 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51225260 is about 7157.1824065061. The cubic root of 51225260 is about 371.3881625524.

Adding to 51225260 its reverse (6252215), we get a palindrome (57477475).

The spelling of 51225260 in words is "fifty-one million, two hundred twenty-five thousand, two hundred sixty".