33142425 has 24 divisors (see below), whose sum is σ = 57180864. Its totient is φ = 16906560.

The previous prime is 33142423. The next prime is 33142477. The reversal of 33142425 is 52424133.

It is not a de Polignac number, because 33142425 - 2¹ = 33142423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33142395 and 33142404.

It is not an unprimeable number, because it can be changed into a prime (33142423) 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, 7882 + ... + 11331.

It is an arithmetic number, because the mean of its divisors is an integer number (2382536).

Almost surely, 2^33142425 is an apocalyptic number.

It is an amenable number.

33142425 is a deficient number, since it is larger than the sum of its proper divisors (24038439).

33142425 is a wasteful number, since it uses less digits than its factorization.

33142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19249 (or 19244 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 33142425 is about 5756.9458048517. The cubic root of 33142425 is about 321.2142182840.

Adding to 33142425 its reverse (52424133), we get a palindrome (85566558).

The spelling of 33142425 in words is "thirty-three million, one hundred forty-two thousand, four hundred twenty-five".