51951356 has 12 divisors (see below), whose sum is σ = 92849568. Its totient is φ = 25422912.

The previous prime is 51951343. The next prime is 51951373. The reversal of 51951356 is 65315915.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137981 + ... + 138356.

It is an arithmetic number, because the mean of its divisors is an integer number (7737464).

Almost surely, 2^51951356 is an apocalyptic number.

It is an amenable number.

51951356 is a deficient number, since it is larger than the sum of its proper divisors (40898212).

51951356 is a wasteful number, since it uses less digits than its factorization.

51951356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276388 (or 276386 counting only the distinct ones).

The product of its digits is 20250, while the sum is 35.

The square root of 51951356 is about 7207.7289072217. The cubic root of 51951356 is about 373.1346920166.

The spelling of 51951356 in words is "fifty-one million, nine hundred fifty-one thousand, three hundred fifty-six".