51902999 has 8 divisors (see below), whose sum is σ = 52370208. Its totient is φ = 51438240.

The previous prime is 51902969. The next prime is 51903001. The reversal of 51902999 is 99920915.

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-51902999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51902909) 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, 95669 + ... + 96209.

It is an arithmetic number, because the mean of its divisors is an integer number (6546276).

Almost surely, 2^51902999 is an apocalyptic number.

51902999 is a deficient number, since it is larger than the sum of its proper divisors (467209).

51902999 is a wasteful number, since it uses less digits than its factorization.

51902999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 51902999 is about 7204.3736021947. The cubic root of 51902999 is about 373.0188831971.

The spelling of 51902999 in words is "fifty-one million, nine hundred two thousand, nine hundred ninety-nine".