51612116 has 6 divisors (see below), whose sum is σ = 90321210. Its totient is φ = 25806056.

The previous prime is 51612109. The next prime is 51612133. The reversal of 51612116 is 61121615.

It can be written as a sum of positive squares in only one way, i.e., 45832900 + 5779216 = 6770^2 + 2404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51612091 and 51612100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451511 + ... + 6451518.

It is an arithmetic number, because the mean of its divisors is an integer number (15053535).

Almost surely, 2^51612116 is an apocalyptic number.

It is an amenable number.

51612116 is a deficient number, since it is larger than the sum of its proper divisors (38709094).

51612116 is a wasteful number, since it uses less digits than its factorization.

51612116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12903033 (or 12903031 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 51612116 is about 7184.1572922647. The cubic root of 51612116 is about 372.3207335243.

The spelling of 51612116 in words is "fifty-one million, six hundred twelve thousand, one hundred sixteen".