51545694 has 8 divisors (see below), whose sum is σ = 103091400. Its totient is φ = 17181896.

The previous prime is 51545693. The next prime is 51545701. The reversal of 51545694 is 49654515.

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

51545694 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51545693) 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, 4295469 + ... + 4295480.

It is an arithmetic number, because the mean of its divisors is an integer number (12886425).

Almost surely, 2^51545694 is an apocalyptic number.

51545694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51545694 is a wasteful number, since it uses less digits than its factorization.

51545694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590954.

The product of its digits is 108000, while the sum is 39.

The square root of 51545694 is about 7179.5329931688. The cubic root of 51545694 is about 372.1609460809.

The spelling of 51545694 in words is "fifty-one million, five hundred forty-five thousand, six hundred ninety-four".