51730270 has 16 divisors (see below), whose sum is σ = 93940560. Its totient is φ = 20508544.

The previous prime is 51730253. The next prime is 51730277. The reversal of 51730270 is 7203715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51730277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21760 + ... + 24019.

It is an arithmetic number, because the mean of its divisors is an integer number (5871285).

Almost surely, 2^51730270 is an apocalyptic number.

51730270 is a deficient number, since it is larger than the sum of its proper divisors (42210290).

51730270 is a wasteful number, since it uses less digits than its factorization.

51730270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45899.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 51730270 is about 7192.3758244408. The cubic root of 51730270 is about 372.6046310583.

Adding to 51730270 its reverse (7203715), we get a palindrome (58933985).

The spelling of 51730270 in words is "fifty-one million, seven hundred thirty thousand, two hundred seventy".