51650325 has 24 divisors (see below), whose sum is σ = 94884800. Its totient is φ = 27546480.

The previous prime is 51650323. The next prime is 51650351. The reversal of 51650325 is 52305615.

51650325 is a `hidden beast` number, since 5 + 1 + 650 + 3 + 2 + 5 = 666.

It is not a de Polignac number, because 51650325 - 2¹ = 51650323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51650323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37585 + ... + 38934.

Almost surely, 2^51650325 is an apocalyptic number.

It is an amenable number.

51650325 is a deficient number, since it is larger than the sum of its proper divisors (43234475).

51650325 is a wasteful number, since it uses less digits than its factorization.

51650325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76538 (or 76527 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 51650325 is about 7186.8160544152. The cubic root of 51650325 is about 372.4125885311.

The spelling of 51650325 in words is "fifty-one million, six hundred fifty thousand, three hundred twenty-five".