51620102 has 8 divisors (see below), whose sum is σ = 78228696. Its totient is φ = 25543872.

The previous prime is 51620099. The next prime is 51620137. The reversal of 51620102 is 20102615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132848 + ... + 133235.

It is an arithmetic number, because the mean of its divisors is an integer number (9778587).

Almost surely, 2^51620102 is an apocalyptic number.

51620102 is a deficient number, since it is larger than the sum of its proper divisors (26608594).

51620102 is a wasteful number, since it uses less digits than its factorization.

51620102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266182.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51620102 is about 7184.7130770825. The cubic root of 51620102 is about 372.3399357341.

Adding to 51620102 its reverse (20102615), we get a palindrome (71722717).

The spelling of 51620102 in words is "fifty-one million, six hundred twenty thousand, one hundred two".