51099771 has 8 divisors (see below), whose sum is σ = 68226064. Its totient is φ = 34020000.

The previous prime is 51099733. The next prime is 51099787. The reversal of 51099771 is 17799015.

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

It is not a de Polignac number, because 51099771 - 2¹⁴ = 51083387 is a prime.

It is a super-2 number, since 2×51099771² = 5222373192504882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51099871) 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, 8980 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (8528258).

Almost surely, 2^51099771 is an apocalyptic number.

51099771 is a deficient number, since it is larger than the sum of its proper divisors (17126293).

51099771 is a wasteful number, since it uses less digits than its factorization.

51099771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23261.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 51099771 is about 7148.4103827355. The cubic root of 51099771 is about 371.0846453816.

The spelling of 51099771 in words is "fifty-one million, ninety-nine thousand, seven hundred seventy-one".