51349000 has 32 divisors (see below), whose sum is σ = 120159000. Its totient is φ = 20539200.

The previous prime is 51348991. The next prime is 51349031. The reversal of 51349000 is 94315.

It can be written as a sum of positive squares in 4 ways, for example, as 5299204 + 46049796 = 2302^2 + 6786^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24675 + ... + 26674.

Almost surely, 2^51349000 is an apocalyptic number.

51349000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51349000 is an abundant number, since it is smaller than the sum of its proper divisors (68810000).

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

51349000 is a wasteful number, since it uses less digits than its factorization.

51349000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51370 (or 51356 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 51349000 is about 7165.8216556094. The cubic root of 51349000 is about 371.6869644671.

The spelling of 51349000 in words is "fifty-one million, three hundred forty-nine thousand".