42750525 has 24 divisors (see below), whose sum is σ = 70870464. Its totient is φ = 22739200.

The previous prime is 42750517. The next prime is 42750541. The reversal of 42750525 is 52505724.

It is not a de Polignac number, because 42750525 - 2³ = 42750517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42750492 and 42750501.

It is a congruent 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, 48085 + ... + 48965.

It is an arithmetic number, because the mean of its divisors is an integer number (2952936).

Almost surely, 2^42750525 is an apocalyptic number.

It is an amenable number.

42750525 is a deficient number, since it is larger than the sum of its proper divisors (28119939).

42750525 is a wasteful number, since it uses less digits than its factorization.

42750525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 42750525 is about 6538.3885629412. The cubic root of 42750525 is about 349.6609642080.

The spelling of 42750525 in words is "forty-two million, seven hundred fifty thousand, five hundred twenty-five".