51413530 has 16 divisors (see below), whose sum is σ = 105765120. Its totient is φ = 17627472.

The previous prime is 51413519. The next prime is 51413539. The reversal of 51413530 is 3531415.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51413539) 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, 367170 + ... + 367309.

It is an arithmetic number, because the mean of its divisors is an integer number (6610320).

Almost surely, 2^51413530 is an apocalyptic number.

51413530 is an abundant number, since it is smaller than the sum of its proper divisors (54351590).

51413530 is a wasteful number, since it uses less digits than its factorization.

51413530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734493.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51413530 is about 7170.3228658129. The cubic root of 51413530 is about 371.8425982644.

Adding to 51413530 its reverse (3531415), we get a palindrome (54944945).

The spelling of 51413530 in words is "fifty-one million, four hundred thirteen thousand, five hundred thirty".