51671701 has 8 divisors (see below), whose sum is σ = 52700544. Its totient is φ = 50653200.

The previous prime is 51671689. The next prime is 51671713. The reversal of 51671701 is 10717615.

It is an interprime number because it is at equal distance from previous prime (51671689) and next prime (51671713).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51671701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51671701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51671791) 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, 7920 + ... + 12886.

It is an arithmetic number, because the mean of its divisors is an integer number (6587568).

Almost surely, 2^51671701 is an apocalyptic number.

It is an amenable number.

51671701 is a deficient number, since it is larger than the sum of its proper divisors (1028843).

51671701 is a wasteful number, since it uses less digits than its factorization.

51671701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 51671701 is about 7188.3030681796. The cubic root of 51671701 is about 372.4639569949.

It can be divided in two parts, 5 and 1671701, that added together give a triangular number (1671706 = T₁₈₂₈).

The spelling of 51671701 in words is "fifty-one million, six hundred seventy-one thousand, seven hundred one".