51951606 has 32 divisors (see below), whose sum is σ = 118990080. Its totient is φ = 14812896.

The previous prime is 51951593. The next prime is 51951619. The reversal of 51951606 is 60615915.

It is an interprime number because it is at equal distance from previous prime (51951593) and next prime (51951619).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26740 + ... + 28616.

It is an arithmetic number, because the mean of its divisors is an integer number (3718440).

Almost surely, 2^51951606 is an apocalyptic number.

51951606 is an abundant number, since it is smaller than the sum of its proper divisors (67038474).

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

51951606 is a wasteful number, since it uses less digits than its factorization.

51951606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 51951606 is about 7207.7462496955. The cubic root of 51951606 is about 373.1352905478.

It can be divided in two parts, 519 and 51606, that added together give a palindrome (52125).

The spelling of 51951606 in words is "fifty-one million, nine hundred fifty-one thousand, six hundred six".