42769025 has 24 divisors (see below), whose sum is σ = 60480504. Its totient is φ = 29721600.

The previous prime is 42769009. The next prime is 42769037. The reversal of 42769025 is 52096724.

It can be written as a sum of positive squares in 12 ways, for example, as 19430464 + 23338561 = 4408^2 + 4831^2 .

It is not a de Polignac number, because 42769025 - 2⁴ = 42769009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1655 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (2520021).

Almost surely, 2^42769025 is an apocalyptic number.

It is an amenable number.

42769025 is a deficient number, since it is larger than the sum of its proper divisors (17711479).

42769025 is a wasteful number, since it uses less digits than its factorization.

42769025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 42769025 is about 6539.8031315935. The cubic root of 42769025 is about 349.7113947385.

The spelling of 42769025 in words is "forty-two million, seven hundred sixty-nine thousand, twenty-five".