51214470 has 32 divisors (see below), whose sum is σ = 123107040. Its totient is φ = 13635840.

The previous prime is 51214469. The next prime is 51214477. The reversal of 51214470 is 7441215.

It is a self number, because there is not a number n which added to its sum of digits gives 51214470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51214477) 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, 31026 + ... + 32634.

It is an arithmetic number, because the mean of its divisors is an integer number (3847095).

Almost surely, 2^51214470 is an apocalyptic number.

51214470 is an abundant number, since it is smaller than the sum of its proper divisors (71892570).

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

51214470 is a wasteful number, since it uses less digits than its factorization.

51214470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 51214470 is about 7156.4285785579. The cubic root of 51214470 is about 371.3620845350.

Adding to 51214470 its reverse (7441215), we get a palindrome (58655685).

It can be divided in two parts, 5121 and 4470, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 51214470 in words is "fifty-one million, two hundred fourteen thousand, four hundred seventy".