42472545 has 32 divisors (see below), whose sum is σ = 72410112. Its totient is φ = 21184512.

The previous prime is 42472541. The next prime is 42472553. The reversal of 42472545 is 54527424.

It is not a de Polignac number, because 42472545 - 2² = 42472541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42472541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48784 + ... + 49646.

It is an arithmetic number, because the mean of its divisors is an integer number (2262816).

Almost surely, 2^42472545 is an apocalyptic number.

It is an amenable number.

42472545 is a deficient number, since it is larger than the sum of its proper divisors (29937567).

42472545 is a wasteful number, since it uses less digits than its factorization.

42472545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

The product of its digits is 44800, while the sum is 33.

The square root of 42472545 is about 6517.0963626449. The cubic root of 42472545 is about 348.9014398631.

Adding to 42472545 its reverse (54527424), we get a palindrome (96999969).

The spelling of 42472545 in words is "forty-two million, four hundred seventy-two thousand, five hundred forty-five".