51670108 has 72 divisors (see below), whose sum is σ = 110315520. Its totient is φ = 21097440.

The previous prime is 51670103. The next prime is 51670163. The reversal of 51670108 is 80107615.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51670103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654013 + ... + 654091.

It is an arithmetic number, because the mean of its divisors is an integer number (1532160).

Almost surely, 2^51670108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51670108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55157760).

51670108 is an abundant number, since it is smaller than the sum of its proper divisors (58645412).

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

51670108 is a wasteful number, since it uses less digits than its factorization.

51670108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 51670108 is about 7188.1922623146. The cubic root of 51670108 is about 372.4601293602.

The spelling of 51670108 in words is "fifty-one million, six hundred seventy thousand, one hundred eight".