42977025 has 72 divisors (see below), whose sum is σ = 94785600. Its totient is φ = 18126720.

The previous prime is 42977021. The next prime is 42977029. The reversal of 42977025 is 52077924.

It is an interprime number because it is at equal distance from previous prime (42977021) and next prime (42977029).

It is not a de Polignac number, because 42977025 - 2² = 42977021 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42977021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19426 + ... + 21524.

Almost surely, 2^42977025 is an apocalyptic number.

42977025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42977025 is an abundant number, since it is smaller than the sum of its proper divisors (51808575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42977025 is a wasteful number, since it uses less digits than its factorization.

42977025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2127 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 42977025 is about 6555.6864629114. The cubic root of 42977025 is about 350.2773991316.

The spelling of 42977025 in words is "forty-two million, nine hundred seventy-seven thousand, twenty-five".