51815062 has 24 divisors (see below), whose sum is σ = 86236920. Its totient is φ = 23325120.

The previous prime is 51815041. The next prime is 51815063. The reversal of 51815062 is 26051815.

It is a self number, because there is not a number n which added to its sum of digits gives 51815062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51815063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11989 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (3593205).

Almost surely, 2^51815062 is an apocalyptic number.

51815062 is a deficient number, since it is larger than the sum of its proper divisors (34421858).

51815062 is a wasteful number, since it uses less digits than its factorization.

51815062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808 (or 3795 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51815062 is about 7198.2679861200. The cubic root of 51815062 is about 372.8081008742.

Adding to 51815062 its reverse (26051815), we get a palindrome (77866877).

The spelling of 51815062 in words is "fifty-one million, eight hundred fifteen thousand, sixty-two".