37572445 has 4 divisors (see below), whose sum is σ = 45086940. Its totient is φ = 30057952.

The previous prime is 37572421. The next prime is 37572449. The reversal of 37572445 is 54427573.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54427573 = 97 ⋅561109.

It can be written as a sum of positive squares in 2 ways, for example, as 29127609 + 8444836 = 5397^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 37572445 - 2⁵ = 37572413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37572449) 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, 3757240 + ... + 3757249.

It is an arithmetic number, because the mean of its divisors is an integer number (11271735).

Almost surely, 2^37572445 is an apocalyptic number.

It is an amenable number.

37572445 is a deficient number, since it is larger than the sum of its proper divisors (7514495).

37572445 is an equidigital number, since it uses as much as digits as its factorization.

37572445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7514494.

The product of its digits is 117600, while the sum is 37.

The square root of 37572445 is about 6129.6366123939. The cubic root of 37572445 is about 334.9318789237.

It can be divided in two parts, 375724 and 45, that added together give a square (375769 = 613²).

The spelling of 37572445 in words is "thirty-seven million, five hundred seventy-two thousand, four hundred forty-five".