71663054 has 8 divisors (see below), whose sum is σ = 107531328. Its totient is φ = 35819280.

The previous prime is 71663051. The next prime is 71663071. The reversal of 71663054 is 45036617.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71663054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71663051) 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, 5954 + ... + 13370.

It is an arithmetic number, because the mean of its divisors is an integer number (13441416).

Almost surely, 2^71663054 is an apocalyptic number.

71663054 is a deficient number, since it is larger than the sum of its proper divisors (35868274).

71663054 is a wasteful number, since it uses less digits than its factorization.

71663054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12250.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 71663054 is about 8465.4033571945. The cubic root of 71663054 is about 415.3667904472.

The spelling of 71663054 in words is "seventy-one million, six hundred sixty-three thousand, fifty-four".