51464530 has 32 divisors (see below), whose sum is σ = 101896704. Its totient is φ = 18595776.

The previous prime is 51464527. The next prime is 51464533. The reversal of 51464530 is 3546415.

It is an interprime number because it is at equal distance from previous prime (51464527) and next prime (51464533).

It is not an unprimeable number, because it can be changed into a prime (51464533) 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, 1899 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (3184272).

Almost surely, 2^51464530 is an apocalyptic number.

51464530 is a deficient number, since it is larger than the sum of its proper divisors (50432174).

51464530 is a wasteful number, since it uses less digits than its factorization.

51464530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51464530 is about 7173.8783095338. The cubic root of 51464530 is about 371.9655082292.

The spelling of 51464530 in words is "fifty-one million, four hundred sixty-four thousand, five hundred thirty".