537245645 has 16 divisors (see below), whose sum is σ = 683192880. Its totient is φ = 404173824.

The previous prime is 537245641. The next prime is 537245651. The reversal of 537245645 is 546542735.

It can be written as a sum of positive squares in 8 ways, for example, as 134119561 + 403126084 = 11581^2 + 20078^2 .

It is a cyclic number.

It is not a de Polignac number, because 537245645 - 2² = 537245641 is a prime.

It is a super-3 number, since 3×537245645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537245641) 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, 150299 + ... + 153831.

It is an arithmetic number, because the mean of its divisors is an integer number (42699555).

Almost surely, 2^537245645 is an apocalyptic number.

It is an amenable number.

537245645 is a deficient number, since it is larger than the sum of its proper divisors (145947235).

537245645 is a wasteful number, since it uses less digits than its factorization.

537245645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344.

The product of its digits is 504000, while the sum is 41.

The square root of 537245645 is about 23178.5600286126. The cubic root of 537245645 is about 812.9383928460.

The spelling of 537245645 in words is "five hundred thirty-seven million, two hundred forty-five thousand, six hundred forty-five".