51225361 has 8 divisors (see below), whose sum is σ = 57685248. Its totient is φ = 45066000.

The previous prime is 51225331. The next prime is 51225371. The reversal of 51225361 is 16352215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51225361 - 2⁵ = 51225329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51225331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74770 + ... + 75451.

It is an arithmetic number, because the mean of its divisors is an integer number (7210656).

Almost surely, 2^51225361 is an apocalyptic number.

It is an amenable number.

51225361 is a deficient number, since it is larger than the sum of its proper divisors (6459887).

51225361 is a wasteful number, since it uses less digits than its factorization.

51225361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150263.

The product of its digits is 1800, while the sum is 25.

The square root of 51225361 is about 7157.1894623518. The cubic root of 51225361 is about 371.3884066389.

Adding to 51225361 its reverse (16352215), we get a palindrome (67577576).

The spelling of 51225361 in words is "fifty-one million, two hundred twenty-five thousand, three hundred sixty-one".