51564126 has 16 divisors (see below), whose sum is σ = 103227264. Its totient is φ = 17171544.

The previous prime is 51564113. The next prime is 51564127. The reversal of 51564126 is 62146515.

It is a junction number, because it is equal to n+sod(n) for n = 51564093 and 51564102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51564127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3825 + ... + 10851.

It is an arithmetic number, because the mean of its divisors is an integer number (6451704).

Almost surely, 2^51564126 is an apocalyptic number.

51564126 is an abundant number, since it is smaller than the sum of its proper divisors (51663138).

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

51564126 is a wasteful number, since it uses less digits than its factorization.

51564126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255.

The product of its digits is 7200, while the sum is 30.

The square root of 51564126 is about 7180.8165273874. The cubic root of 51564126 is about 372.2053005979.

The spelling of 51564126 in words is "fifty-one million, five hundred sixty-four thousand, one hundred twenty-six".