51005325 has 36 divisors (see below), whose sum is σ = 98103840. Its totient is φ = 23315040.

The previous prime is 51005309. The next prime is 51005371. The reversal of 51005325 is 52350015.

It is not a de Polignac number, because 51005325 - 2⁴ = 51005309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3265 + ... + 10614.

Almost surely, 2^51005325 is an apocalyptic number.

It is an amenable number.

51005325 is a deficient number, since it is larger than the sum of its proper divisors (47098515).

51005325 is a wasteful number, since it uses less digits than its factorization.

51005325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906 (or 13894 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51005325 is about 7141.8012433839. The cubic root of 51005325 is about 370.8558832673.

The spelling of 51005325 in words is "fifty-one million, five thousand, three hundred twenty-five".