51270630 has 32 divisors (see below), whose sum is σ = 124275168. Its totient is φ = 13536000.

The previous prime is 51270613. The next prime is 51270631. The reversal of 51270630 is 3607215.

It is a self number, because there is not a number n which added to its sum of digits gives 51270630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51270631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5431 + ... + 11490.

It is an arithmetic number, because the mean of its divisors is an integer number (3883599).

Almost surely, 2^51270630 is an apocalyptic number.

51270630 is an abundant number, since it is smaller than the sum of its proper divisors (73004538).

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

51270630 is a wasteful number, since it uses less digits than its factorization.

51270630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 51270630 is about 7160.3512483676. The cubic root of 51270630 is about 371.4977758484.

Adding to 51270630 its reverse (3607215), we get a palindrome (54877845).

The spelling of 51270630 in words is "fifty-one million, two hundred seventy thousand, six hundred thirty".