42525312 has 64 divisors (see below), whose sum is σ = 114933600. Its totient is φ = 13927424.

The previous prime is 42525311. The next prime is 42525341. The reversal of 42525312 is 21352524.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (42525311) 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, 21718 + ... + 23594.

Almost surely, 2^42525312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42525312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57466800).

42525312 is an abundant number, since it is smaller than the sum of its proper divisors (72408288).

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

42525312 is a wasteful number, since it uses less digits than its factorization.

42525312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953 (or 1941 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 42525312 is about 6521.1434580141. The cubic root of 42525312 is about 349.0458693470.

Adding to 42525312 its reverse (21352524), we get a palindrome (63877836).

The spelling of 42525312 in words is "forty-two million, five hundred twenty-five thousand, three hundred twelve".