51224925 has 24 divisors (see below), whose sum is σ = 85146336. Its totient is φ = 27173440.

The previous prime is 51224923. The next prime is 51224941. The reversal of 51224925 is 52942215.

51224925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51224925 - 2¹ = 51224923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51224892 and 51224901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51224923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13042 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (3547764).

Almost surely, 2^51224925 is an apocalyptic number.

It is an amenable number.

51224925 is a deficient number, since it is larger than the sum of its proper divisors (33921411).

51224925 is a wasteful number, since it uses less digits than its factorization.

51224925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677 (or 3672 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 51224925 is about 7157.1590034035. The cubic root of 51224925 is about 371.3873529563.

The spelling of 51224925 in words is "fifty-one million, two hundred twenty-four thousand, nine hundred twenty-five".