51337225 has 9 divisors (see below), whose sum is σ = 63702613. Its totient is φ = 41041120.

The previous prime is 51337217. The next prime is 51337267. The reversal of 51337225 is 52273315.

The square root of 51337225 is 7165.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2393209 + 48944016 = 1547^2 + 6996^2 .

It is not a de Polignac number, because 51337225 - 2³ = 51337217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51337193 and 51337202.

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 8 ways as a sum of consecutive naturals, for example, 35109 + ... + 36541.

Almost surely, 2^51337225 is an apocalyptic number.

51337225 is the 7165-th square number.

51337225 is the 3583-rd centered octagonal number.

It is an amenable number.

51337225 is a deficient number, since it is larger than the sum of its proper divisors (12365388).

51337225 is an frugal number, since it uses more digits than its factorization.

51337225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 1438 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The cubic root of 51337225 is about 371.6585513945.

The spelling of 51337225 in words is "fifty-one million, three hundred thirty-seven thousand, two hundred twenty-five".