51025672 has 8 divisors (see below), whose sum is σ = 95673150. Its totient is φ = 25512832.

The previous prime is 51025651. The next prime is 51025673. The reversal of 51025672 is 27652015.

It can be written as a sum of positive squares in only one way, i.e., 39012516 + 12013156 = 6246^2 + 3466^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 51025672.

It is not an unprimeable number, because it can be changed into a prime (51025673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3189097 + ... + 3189112.

Almost surely, 2^51025672 is an apocalyptic number.

It is an amenable number.

51025672 is a deficient number, since it is larger than the sum of its proper divisors (44647478).

51025672 is a wasteful number, since it uses less digits than its factorization.

51025672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378215 (or 6378211 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 51025672 is about 7143.2256019252. The cubic root of 51025672 is about 370.9051905471.

Adding to 51025672 its reverse (27652015), we get a palindrome (78677687).

The spelling of 51025672 in words is "fifty-one million, twenty-five thousand, six hundred seventy-two".