51026542 has 12 divisors (see below), whose sum is σ = 89036280. Its totient is φ = 21868476.

The previous prime is 51026531. The next prime is 51026557. The reversal of 51026542 is 24562015.

51026542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 260242 + ... + 260437.

It is an arithmetic number, because the mean of its divisors is an integer number (7419690).

Almost surely, 2^51026542 is an apocalyptic number.

51026542 is a deficient number, since it is larger than the sum of its proper divisors (38009738).

51026542 is a wasteful number, since it uses less digits than its factorization.

51026542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520695 (or 520688 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51026542 is about 7143.2864985243. The cubic root of 51026542 is about 370.9072985427.

Adding to 51026542 its reverse (24562015), we get a palindrome (75588557).

The spelling of 51026542 in words is "fifty-one million, twenty-six thousand, five hundred forty-two".