51957858 has 8 divisors (see below), whose sum is σ = 103915728. Its totient is φ = 17319284.

The previous prime is 51957853. The next prime is 51957863. The reversal of 51957858 is 85875915.

It is an interprime number because it is at equal distance from previous prime (51957853) and next prime (51957863).

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

51957858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51957853) 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, 4329816 + ... + 4329827.

It is an arithmetic number, because the mean of its divisors is an integer number (12989466).

Almost surely, 2^51957858 is an apocalyptic number.

51957858 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.

51957858 is a wasteful number, since it uses less digits than its factorization.

51957858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659648.

The product of its digits is 504000, while the sum is 48.

The square root of 51957858 is about 7208.1799367108. The cubic root of 51957858 is about 373.1502579918.

The spelling of 51957858 in words is "fifty-one million, nine hundred fifty-seven thousand, eight hundred fifty-eight".