51932145 has 16 divisors (see below), whose sum is σ = 83185920. Its totient is φ = 27665664.

The previous prime is 51932143. The next prime is 51932147. The reversal of 51932145 is 54123915.

It is an interprime number because it is at equal distance from previous prime (51932143) and next prime (51932147).

It is not a de Polignac number, because 51932145 - 2¹ = 51932143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51932141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18601 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (5199120).

Almost surely, 2^51932145 is an apocalyptic number.

It is an amenable number.

51932145 is a deficient number, since it is larger than the sum of its proper divisors (31253775).

51932145 is a wasteful number, since it uses less digits than its factorization.

51932145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944.

The product of its digits is 5400, while the sum is 30.

The square root of 51932145 is about 7206.3961173391. The cubic root of 51932145 is about 373.0886927403.

The spelling of 51932145 in words is "fifty-one million, nine hundred thirty-two thousand, one hundred forty-five".