51089129 has 8 divisors (see below), whose sum is σ = 62879040. Its totient is φ = 40422096.

The previous prime is 51089113. The next prime is 51089153. The reversal of 51089129 is 92198015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51089129 - 2⁴ = 51089113 is a prime.

It is a super-2 number, since 2×51089129² = 5220198203957282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51089429) 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, 280619 + ... + 280800.

It is an arithmetic number, because the mean of its divisors is an integer number (7859880).

Almost surely, 2^51089129 is an apocalyptic number.

It is an amenable number.

51089129 is a deficient number, since it is larger than the sum of its proper divisors (11789911).

51089129 is a wasteful number, since it uses less digits than its factorization.

51089129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561439.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 51089129 is about 7147.6659826827. The cubic root of 51089129 is about 371.0588829898.

The spelling of 51089129 in words is "fifty-one million, eighty-nine thousand, one hundred twenty-nine".