65425572 has 36 divisors (see below), whose sum is σ = 168189840. Its totient is φ = 21438192.

The previous prime is 65425561. The next prime is 65425573. The reversal of 65425572 is 27552456.

65425572 is a `hidden beast` number, since 65 + 4 + 25 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65425573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13278 + ... + 17525.

It is an arithmetic number, because the mean of its divisors is an integer number (4671940).

Almost surely, 2^65425572 is an apocalyptic number.

It is an amenable number.

65425572 is an abundant number, since it is smaller than the sum of its proper divisors (102764268).

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

65425572 is a wasteful number, since it uses less digits than its factorization.

65425572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30872 (or 30867 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 65425572 is about 8088.6075439472. The cubic root of 65425572 is about 402.9481591763.

The spelling of 65425572 in words is "sixty-five million, four hundred twenty-five thousand, five hundred seventy-two".