66252450 has 48 divisors (see below), whose sum is σ = 179247456. Its totient is φ = 16060800.

The previous prime is 66252419. The next prime is 66252467. The reversal of 66252450 is 5425266.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18427 + ... + 21726.

It is an arithmetic number, because the mean of its divisors is an integer number (3734322).

Almost surely, 2^66252450 is an apocalyptic number.

66252450 is an abundant number, since it is smaller than the sum of its proper divisors (112995006).

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

66252450 is a wasteful number, since it uses less digits than its factorization.

66252450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40179 (or 40174 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 66252450 is about 8139.5607989621. The cubic root of 66252450 is about 404.6386046032.

The spelling of 66252450 in words is "sixty-six million, two hundred fifty-two thousand, four hundred fifty".