51902454 has 8 divisors (see below), whose sum is σ = 103804920. Its totient is φ = 17300816.

The previous prime is 51902449. The next prime is 51902497. The reversal of 51902454 is 45420915.

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

51902454 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325199 + ... + 4325210.

It is an arithmetic number, because the mean of its divisors is an integer number (12975615).

Almost surely, 2^51902454 is an apocalyptic number.

51902454 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.

51902454 is a wasteful number, since it uses less digits than its factorization.

51902454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650414.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51902454 is about 7204.3357778493. The cubic root of 51902454 is about 373.0175775821.

The spelling of 51902454 in words is "fifty-one million, nine hundred two thousand, four hundred fifty-four".