65662452 has 18 divisors (see below), whose sum is σ = 165980178. Its totient is φ = 21887472.

The previous prime is 65662451. The next prime is 65662453. The reversal of 65662452 is 25426656.

It is an interprime number because it is at equal distance from previous prime (65662451) and next prime (65662453).

It can be written as a sum of positive squares in only one way, i.e., 55890576 + 9771876 = 7476^2 + 3126^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1823957 = 65662452 / (6 + 5 + 6 + 6 + 2 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65662451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 911943 + ... + 912014.

It is an arithmetic number, because the mean of its divisors is an integer number (9221121).

Almost surely, 2^65662452 is an apocalyptic number.

It is an amenable number.

65662452 is an abundant number, since it is smaller than the sum of its proper divisors (100317726).

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

65662452 is a wasteful number, since it uses less digits than its factorization.

65662452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823967 (or 1823962 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 65662452 is about 8103.2371309249. The cubic root of 65662452 is about 403.4338785071.

The spelling of 65662452 in words is "sixty-five million, six hundred sixty-two thousand, four hundred fifty-two".