51088081 has 4 divisors (see below), whose sum is σ = 55732464. Its totient is φ = 46443700.

The previous prime is 51088073. The next prime is 51088087. The reversal of 51088081 is 18088015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51088081 - 2³ = 51088073 is a prime.

It is a super-2 number, since 2×51088081² = 5219984040525122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51088087) 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, 2322175 + ... + 2322196.

It is an arithmetic number, because the mean of its divisors is an integer number (13933116).

Almost surely, 2^51088081 is an apocalyptic number.

It is an amenable number.

51088081 is a deficient number, since it is larger than the sum of its proper divisors (4644383).

51088081 is a wasteful number, since it uses less digits than its factorization.

51088081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644382.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 51088081 is about 7147.5926716623. The cubic root of 51088081 is about 371.0563457744.

The spelling of 51088081 in words is "fifty-one million, eighty-eight thousand, eighty-one".