42319725 has 48 divisors (see below), whose sum is σ = 80649600. Its totient is φ = 19180800.

The previous prime is 42319723. The next prime is 42319727. The reversal of 42319725 is 52791324.

It is an interprime number because it is at equal distance from previous prime (42319723) and next prime (42319727).

It is not a de Polignac number, because 42319725 - 2¹ = 42319723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42319721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77955 + ... + 78495.

It is an arithmetic number, because the mean of its divisors is an integer number (1680200).

Almost surely, 2^42319725 is an apocalyptic number.

It is an amenable number.

42319725 is a deficient number, since it is larger than the sum of its proper divisors (38329875).

42319725 is a wasteful number, since it uses less digits than its factorization.

42319725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 705 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 42319725 is about 6505.3612505379. The cubic root of 42319725 is about 348.4824774867.

The spelling of 42319725 in words is "forty-two million, three hundred nineteen thousand, seven hundred twenty-five".