51025460 has 12 divisors (see below), whose sum is σ = 107153508. Its totient is φ = 20410176.

The previous prime is 51025453. The next prime is 51025493. The reversal of 51025460 is 6452015.

It can be written as a sum of positive squares in 2 ways, for example, as 32741284 + 18284176 = 5722^2 + 4276^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1275617 + ... + 1275656.

It is an arithmetic number, because the mean of its divisors is an integer number (8929459).

Almost surely, 2^51025460 is an apocalyptic number.

It is an amenable number.

51025460 is an abundant number, since it is smaller than the sum of its proper divisors (56128048).

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

51025460 is a wasteful number, since it uses less digits than its factorization.

51025460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551282 (or 2551280 counting only the distinct ones).

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

The square root of 51025460 is about 7143.2107626753. The cubic root of 51025460 is about 370.9046768710.

Adding to 51025460 its reverse (6452015), we get a palindrome (57477475).

The spelling of 51025460 in words is "fifty-one million, twenty-five thousand, four hundred sixty".