42837025 has 81 divisors (see below), whose sum is σ = 72148377. Its totient is φ = 25132800.

The previous prime is 42837013. The next prime is 42837061. The reversal of 42837025 is 52073824.

The square root of 42837025 is 6545.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 41835024 = 1001^2 + 6468^2 .

It is not a de Polignac number, because 42837025 - 2⁷ = 42836897 is a prime.

It is a super-4 number, since 4×42837025⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2519817 + ... + 2519833.

Almost surely, 2^42837025 is an apocalyptic number.

42837025 is the 6545-th square number.

42837025 is the 3273-rd centered octagonal number.

It is an amenable number.

42837025 is a deficient number, since it is larger than the sum of its proper divisors (29311352).

42837025 is a wasteful number, since it uses less digits than its factorization.

42837025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The cubic root of 42837025 is about 349.8966361437.

The spelling of 42837025 in words is "forty-two million, eight hundred thirty-seven thousand, twenty-five".