51342771 has 8 divisors (see below), whose sum is σ = 72483984. Its totient is φ = 32215040.

The previous prime is 51342761. The next prime is 51342787. The reversal of 51342771 is 17724315.

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

It is a cyclic number.

It is not a de Polignac number, because 51342771 - 2⁹ = 51342259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51342761) 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, 503310 + ... + 503411.

It is an arithmetic number, because the mean of its divisors is an integer number (9060498).

Almost surely, 2^51342771 is an apocalyptic number.

51342771 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51342771 is a deficient number, since it is larger than the sum of its proper divisors (21141213).

51342771 is a wasteful number, since it uses less digits than its factorization.

51342771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006741.

The product of its digits is 5880, while the sum is 30.

The square root of 51342771 is about 7165.3870097853. The cubic root of 51342771 is about 371.6719344326.

The spelling of 51342771 in words is "fifty-one million, three hundred forty-two thousand, seven hundred seventy-one".