51103772 has 6 divisors (see below), whose sum is σ = 89431608. Its totient is φ = 25551884.

The previous prime is 51103763. The next prime is 51103777. The reversal of 51103772 is 27730115.

It is a super-2 number, since 2×51103772² = 5223191025255968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51103777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387968 + ... + 6387975.

It is an arithmetic number, because the mean of its divisors is an integer number (14905268).

Almost surely, 2^51103772 is an apocalyptic number.

It is an amenable number.

51103772 is a deficient number, since it is larger than the sum of its proper divisors (38327836).

51103772 is a wasteful number, since it uses less digits than its factorization.

51103772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775947 (or 12775945 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51103772 is about 7148.6902296854. The cubic root of 51103772 is about 371.0943301668.

Adding to 51103772 its reverse (27730115), we get a palindrome (78833887).

It can be divided in two parts, 51 and 103772, that added together give a cube (103823 = 47³).

The spelling of 51103772 in words is "fifty-one million, one hundred three thousand, seven hundred seventy-two".