42625049 has 4 divisors (see below), whose sum is σ = 44478336. Its totient is φ = 40771764.

The previous prime is 42625043. The next prime is 42625057. The reversal of 42625049 is 94052624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42625049 - 2¹⁶ = 42559513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42625043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926609 + ... + 926654.

It is an arithmetic number, because the mean of its divisors is an integer number (11119584).

Almost surely, 2^42625049 is an apocalyptic number.

It is an amenable number.

42625049 is a deficient number, since it is larger than the sum of its proper divisors (1853287).

42625049 is a wasteful number, since it uses less digits than its factorization.

42625049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853286.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 42625049 is about 6528.7861812132. The cubic root of 42625049 is about 349.3185352450.

The spelling of 42625049 in words is "forty-two million, six hundred twenty-five thousand, forty-nine".