66525342 has 16 divisors (see below), whose sum is σ = 143285520. Its totient is φ = 20469312.

The previous prime is 66525341. The next prime is 66525359. The reversal of 66525342 is 24352566.

It is a super-2 number, since 2×66525342² = 8851242256433928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66525341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426367 + ... + 426522.

It is an arithmetic number, because the mean of its divisors is an integer number (8955345).

Almost surely, 2^66525342 is an apocalyptic number.

66525342 is an abundant number, since it is smaller than the sum of its proper divisors (76760178).

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

66525342 is a wasteful number, since it uses less digits than its factorization.

66525342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852907.

The product of its digits is 43200, while the sum is 33.

The square root of 66525342 is about 8156.3068848591. The cubic root of 66525342 is about 405.1934086133.

The spelling of 66525342 in words is "sixty-six million, five hundred twenty-five thousand, three hundred forty-two".