42545361 has 16 divisors (see below), whose sum is σ = 59924480. Its totient is φ = 26807760.

The previous prime is 42545357. The next prime is 42545369. The reversal of 42545361 is 16354524.

It is not a de Polignac number, because 42545361 - 2² = 42545357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42545369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321 + ... + 9318.

It is an arithmetic number, because the mean of its divisors is an integer number (3745280).

Almost surely, 2^42545361 is an apocalyptic number.

It is an amenable number.

42545361 is a deficient number, since it is larger than the sum of its proper divisors (17379119).

42545361 is a wasteful number, since it uses less digits than its factorization.

42545361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716.

The product of its digits is 14400, while the sum is 30.

The square root of 42545361 is about 6522.6805072761. The cubic root of 42545361 is about 349.1007144956.

Adding to 42545361 its reverse (16354524), we get a palindrome (58899885).

The spelling of 42545361 in words is "forty-two million, five hundred forty-five thousand, three hundred sixty-one".