42707525 has 12 divisors (see below), whose sum is σ = 60522912. Its totient is φ = 29285040.

The previous prime is 42707507. The next prime is 42707531. The reversal of 42707525 is 52570724.

42707525 = 1295² + 1296² + ... + 1319².

It is not a de Polignac number, because 42707525 - 2⁶ = 42707461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42707491 and 42707500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121847 + ... + 122196.

It is an arithmetic number, because the mean of its divisors is an integer number (5043576).

Almost surely, 2^42707525 is an apocalyptic number.

It is an amenable number.

42707525 is a deficient number, since it is larger than the sum of its proper divisors (17815387).

42707525 is a wasteful number, since it uses less digits than its factorization.

42707525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244060 (or 244055 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 42707525 is about 6535.0994636654. The cubic root of 42707525 is about 349.5436910647.

The spelling of 42707525 in words is "forty-two million, seven hundred seven thousand, five hundred twenty-five".