51159396 has 12 divisors (see below), whose sum is σ = 119371952. Its totient is φ = 17053128.

The previous prime is 51159323. The next prime is 51159397. The reversal of 51159396 is 69395115.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (51159397) 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, 2131630 + ... + 2131653.

Almost surely, 2^51159396 is an apocalyptic number.

It is an amenable number.

51159396 is an abundant number, since it is smaller than the sum of its proper divisors (68212556).

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

51159396 is a wasteful number, since it uses less digits than its factorization.

51159396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263290 (or 4263288 counting only the distinct ones).

The product of its digits is 36450, while the sum is 39.

The square root of 51159396 is about 7152.5796744951. The cubic root of 51159396 is about 371.2289207953.

The spelling of 51159396 in words is "fifty-one million, one hundred fifty-nine thousand, three hundred ninety-six".