51353530 has 16 divisors (see below), whose sum is σ = 92542464. Its totient is φ = 20517840.

The previous prime is 51353513. The next prime is 51353537. The reversal of 51353530 is 3535315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51353495 and 51353504.

It is not an unprimeable number, because it can be changed into a prime (51353537) 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, 8215 + ... + 13045.

It is an arithmetic number, because the mean of its divisors is an integer number (5783904).

Almost surely, 2^51353530 is an apocalyptic number.

51353530 is a deficient number, since it is larger than the sum of its proper divisors (41188934).

51353530 is a wasteful number, since it uses less digits than its factorization.

51353530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5901.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 51353530 is about 7166.1377324190. The cubic root of 51353530 is about 371.6978941992.

Adding to 51353530 its reverse (3535315), we get a palindrome (54888845).

The spelling of 51353530 in words is "fifty-one million, three hundred fifty-three thousand, five hundred thirty".