42950025 has 18 divisors (see below), whose sum is σ = 76928670. Its totient is φ = 22906560.

The previous prime is 42950021. The next prime is 42950029. The reversal of 42950025 is 52005924.

It is an interprime number because it is at equal distance from previous prime (42950021) and next prime (42950029).

It can be written as a sum of positive squares in 3 ways, for example, as 335241 + 42614784 = 579^2 + 6528^2 .

It is not a de Polignac number, because 42950025 - 2² = 42950021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42950021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 95220 + ... + 95669.

It is an arithmetic number, because the mean of its divisors is an integer number (4273815).

Almost surely, 2^42950025 is an apocalyptic number.

42950025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42950025 is a deficient number, since it is larger than the sum of its proper divisors (33978645).

42950025 is a wasteful number, since it uses less digits than its factorization.

42950025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190905 (or 190897 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 42950025 is about 6553.6268584655. The cubic root of 42950025 is about 350.2040306981.

Adding to 42950025 its reverse (52005924), we get a palindrome (94955949).

The spelling of 42950025 in words is "forty-two million, nine hundred fifty thousand, twenty-five".