42798525 has 48 divisors (see below), whose sum is σ = 88232448. Its totient is φ = 17784000.

The previous prime is 42798521. The next prime is 42798533. The reversal of 42798525 is 52589724.

It is not a de Polignac number, because 42798525 - 2² = 42798521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42798521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2070 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (1838176).

Almost surely, 2^42798525 is an apocalyptic number.

It is an amenable number.

42798525 is an abundant number, since it is smaller than the sum of its proper divisors (45433923).

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

42798525 is a wasteful number, since it uses less digits than its factorization.

42798525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7442 (or 7437 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 42798525 is about 6542.0581623828. The cubic root of 42798525 is about 349.7917809145.

The spelling of 42798525 in words is "forty-two million, seven hundred ninety-eight thousand, five hundred twenty-five".