51943350 has 48 divisors (see below), whose sum is σ = 133272720. Its totient is φ = 13372800.

The previous prime is 51943349. The next prime is 51943393. The reversal of 51943350 is 5334915.

It is a super-2 number, since 2×51943350² = 5396223218445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1621 + ... + 10320.

It is an arithmetic number, because the mean of its divisors is an integer number (2776515).

Almost surely, 2^51943350 is an apocalyptic number.

51943350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51943350 is an abundant number, since it is smaller than the sum of its proper divisors (81329370).

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

51943350 is a wasteful number, since it uses less digits than its factorization.

51943350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11985 (or 11980 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 51943350 is about 7207.1735097748. The cubic root of 51943350 is about 373.1155236378.

The spelling of 51943350 in words is "fifty-one million, nine hundred forty-three thousand, three hundred fifty".