51464425 has 6 divisors (see below), whose sum is σ = 63815918. Its totient is φ = 41171520.

The previous prime is 51464401. The next prime is 51464429. The reversal of 51464425 is 52446415.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 15031129 + 36433296 = 3877^2 + 6036^2 .

It is not a de Polignac number, because 51464425 - 2¹¹ = 51462377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51464429) 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 5 ways as a sum of consecutive naturals, for example, 1029264 + ... + 1029313.

Almost surely, 2^51464425 is an apocalyptic number.

It is an amenable number.

51464425 is a deficient number, since it is larger than the sum of its proper divisors (12351493).

51464425 is a wasteful number, since it uses less digits than its factorization.

51464425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058587 (or 2058582 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 51464425 is about 7173.8709913128. The cubic root of 51464425 is about 371.9652552627.

The spelling of 51464425 in words is "fifty-one million, four hundred sixty-four thousand, four hundred twenty-five".