51109528 has 8 divisors (see below), whose sum is σ = 95830380. Its totient is φ = 25554760.

The previous prime is 51109523. The next prime is 51109529. The reversal of 51109528 is 82590115.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51109528² = 5224367704765568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51109528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51109523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194338 + ... + 3194353.

Almost surely, 2^51109528 is an apocalyptic number.

It is an amenable number.

51109528 is a deficient number, since it is larger than the sum of its proper divisors (44720852).

51109528 is a wasteful number, since it uses less digits than its factorization.

51109528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388697 (or 6388693 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 51109528 is about 7149.0928095808. The cubic root of 51109528 is about 371.1082622028.

The spelling of 51109528 in words is "fifty-one million, one hundred nine thousand, five hundred twenty-eight".