42658425 has 18 divisors (see below), whose sum is σ = 76406382. Its totient is φ = 22751040.

The previous prime is 42658417. The next prime is 42658453. The reversal of 42658425 is 52485624.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 356409 + 42302016 = 597^2 + 6504^2 .

It is not a de Polignac number, because 42658425 - 2³ = 42658417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42658425.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 94572 + ... + 95021.

It is an arithmetic number, because the mean of its divisors is an integer number (4244799).

Almost surely, 2^42658425 is an apocalyptic number.

42658425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42658425 is a deficient number, since it is larger than the sum of its proper divisors (33747957).

42658425 is a wasteful number, since it uses less digits than its factorization.

42658425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189609 (or 189601 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 42658425 is about 6531.3417457671. The cubic root of 42658425 is about 349.4096851988.

The spelling of 42658425 in words is "forty-two million, six hundred fifty-eight thousand, four hundred twenty-five".