51350650 has 72 divisors (see below), whose sum is σ = 106198560. Its totient is φ = 18457920.

The previous prime is 51350641. The next prime is 51350669. The reversal of 51350650 is 5605315.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 498499 + ... + 498601.

It is an arithmetic number, because the mean of its divisors is an integer number (1474980).

Almost surely, 2^51350650 is an apocalyptic number.

51350650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51350650 is an abundant number, since it is smaller than the sum of its proper divisors (54847910).

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

51350650 is a wasteful number, since it uses less digits than its factorization.

51350650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 51350650 is about 7165.9367845384. The cubic root of 51350650 is about 371.6909455698.

Adding to 51350650 its reverse (5605315), we get a palindrome (56955965).

The spelling of 51350650 in words is "fifty-one million, three hundred fifty thousand, six hundred fifty".