66852495 has 24 divisors (see below), whose sum is σ = 116912016. Its totient is φ = 35336448.

The previous prime is 66852493. The next prime is 66852503. The reversal of 66852495 is 59425866.

It is not a de Polignac number, because 66852495 - 2¹ = 66852493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 66852495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66852491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1489 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (4871334).

Almost surely, 2^66852495 is an apocalyptic number.

66852495 is a deficient number, since it is larger than the sum of its proper divisors (50059521).

66852495 is a wasteful number, since it uses less digits than its factorization.

66852495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271 (or 13268 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 66852495 is about 8176.3375052648. The cubic root of 66852495 is about 405.8565320132.

It can be divided in two parts, 6685 and 2495, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 66852495 in words is "sixty-six million, eight hundred fifty-two thousand, four hundred ninety-five".