51045102 has 24 divisors (see below), whose sum is σ = 112952736. Its totient is φ = 16652736.

The previous prime is 51045079. The next prime is 51045103. The reversal of 51045102 is 20154015.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045103) 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, 29323 + ... + 31014.

It is an arithmetic number, because the mean of its divisors is an integer number (4706364).

Almost surely, 2^51045102 is an apocalyptic number.

51045102 is an abundant number, since it is smaller than the sum of its proper divisors (61907634).

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

51045102 is a wasteful number, since it uses less digits than its factorization.

51045102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60392 (or 60389 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51045102 is about 7144.5855023227. The cubic root of 51045102 is about 370.9522634095.

Adding to 51045102 its reverse (20154015), we get a palindrome (71199117).

The spelling of 51045102 in words is "fifty-one million, forty-five thousand, one hundred two".