51670902 has 16 divisors (see below), whose sum is σ = 105094080. Its totient is φ = 16931592.

The previous prime is 51670891. The next prime is 51670909. The reversal of 51670902 is 20907615.

It is a super-2 number, since 2×51670902² = 5339764226987208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51670902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51670909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72628 + ... + 73335.

It is an arithmetic number, because the mean of its divisors is an integer number (6568380).

Almost surely, 2^51670902 is an apocalyptic number.

51670902 is an abundant number, since it is smaller than the sum of its proper divisors (53423178).

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

51670902 is a wasteful number, since it uses less digits than its factorization.

51670902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146027.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 51670902 is about 7188.2474915657. The cubic root of 51670902 is about 372.4620371804.

The spelling of 51670902 in words is "fifty-one million, six hundred seventy thousand, nine hundred two".