51329956 has 12 divisors (see below), whose sum is σ = 89976880. Its totient is φ = 25622280.

The previous prime is 51329923. The next prime is 51329959. The reversal of 51329956 is 65992315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51329959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7890 + ... + 12841.

Almost surely, 2^51329956 is an apocalyptic number.

It is an amenable number.

51329956 is a deficient number, since it is larger than the sum of its proper divisors (38646924).

51329956 is a wasteful number, since it uses less digits than its factorization.

51329956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21354 (or 21352 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 51329956 is about 7164.4927245409. The cubic root of 51329956 is about 371.6410091301.

The spelling of 51329956 in words is "fifty-one million, three hundred twenty-nine thousand, nine hundred fifty-six".