65572130 has 64 divisors (see below), whose sum is σ = 134120448. Its totient is φ = 22913280.

The previous prime is 65572127. The next prime is 65572139. The reversal of 65572130 is 3127556.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65572093 and 65572102.

It is not an unprimeable number, because it can be changed into a prime (65572139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213437 + ... + 213743.

It is an arithmetic number, because the mean of its divisors is an integer number (2095632).

Almost surely, 2^65572130 is an apocalyptic number.

65572130 is an abundant number, since it is smaller than the sum of its proper divisors (68548318).

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

65572130 is a wasteful number, since it uses less digits than its factorization.

65572130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 65572130 is about 8097.6620082589. The cubic root of 65572130 is about 403.2488124391.

Adding to 65572130 its reverse (3127556), we get a palindrome (68699686).

The spelling of 65572130 in words is "sixty-five million, five hundred seventy-two thousand, one hundred thirty".