51949974 has 8 divisors (see below), whose sum is σ = 103899960. Its totient is φ = 17316656.

The previous prime is 51949969. The next prime is 51950023. The reversal of 51949974 is 47994915.

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

51949974 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329159 + ... + 4329170.

It is an arithmetic number, because the mean of its divisors is an integer number (12987495).

Almost surely, 2^51949974 is an apocalyptic number.

51949974 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.

51949974 is a wasteful number, since it uses less digits than its factorization.

51949974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658334.

The product of its digits is 408240, while the sum is 48.

The square root of 51949974 is about 7207.6330372737. The cubic root of 51949974 is about 373.1313833014.

The spelling of 51949974 in words is "fifty-one million, nine hundred forty-nine thousand, nine hundred seventy-four".