51102580 has 12 divisors (see below), whose sum is σ = 107315460. Its totient is φ = 20441024.

The previous prime is 51102577. The next prime is 51102581. The reversal of 51102580 is 8520115.

51102580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13868176 + 37234404 = 3724^2 + 6102^2 .

It is a super-2 number, since 2×51102580² = 5222947365312800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51102581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277545 + ... + 1277584.

It is an arithmetic number, because the mean of its divisors is an integer number (8942955).

Almost surely, 2^51102580 is an apocalyptic number.

It is an amenable number.

51102580 is an abundant number, since it is smaller than the sum of its proper divisors (56212880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51102580 is a wasteful number, since it uses less digits than its factorization.

51102580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555138 (or 2555136 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 51102580 is about 7148.6068572835. The cubic root of 51102580 is about 371.0914448751.

Adding to 51102580 its reverse (8520115), we get a palindrome (59622695).

The spelling of 51102580 in words is "fifty-one million, one hundred two thousand, five hundred eighty".