66525154 has 16 divisors (see below), whose sum is σ = 105598080. Its totient is φ = 31366720.

The previous prime is 66525143. The next prime is 66525161. The reversal of 66525154 is 45152566.

It is a super-2 number, since 2×66525154² = 8851192229447432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6919 + ... + 13450.

It is an arithmetic number, because the mean of its divisors is an integer number (6599880).

Almost surely, 2^66525154 is an apocalyptic number.

66525154 is a deficient number, since it is larger than the sum of its proper divisors (39072926).

66525154 is a wasteful number, since it uses less digits than its factorization.

66525154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20465.

The product of its digits is 36000, while the sum is 34.

The square root of 66525154 is about 8156.2953600271. The cubic root of 66525154 is about 405.1930269220.

The spelling of 66525154 in words is "sixty-six million, five hundred twenty-five thousand, one hundred fifty-four".