51366526 has 4 divisors (see below), whose sum is σ = 77049792. Its totient is φ = 25683262.

The previous prime is 51366517. The next prime is 51366529. The reversal of 51366526 is 62566315.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 51366491 and 51366500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12841630 + ... + 12841633.

It is an arithmetic number, because the mean of its divisors is an integer number (19262448).

Almost surely, 2^51366526 is an apocalyptic number.

51366526 is a deficient number, since it is larger than the sum of its proper divisors (25683266).

51366526 is a wasteful number, since it uses less digits than its factorization.

51366526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25683265.

The product of its digits is 32400, while the sum is 34.

The square root of 51366526 is about 7167.0444396557. The cubic root of 51366526 is about 371.7292466586.

The spelling of 51366526 in words is "fifty-one million, three hundred sixty-six thousand, five hundred twenty-six".