545501240 has 32 divisors (see below), whose sum is σ = 1231115760. Its totient is φ = 217536000.

The previous prime is 545501221. The next prime is 545501251. The reversal of 545501240 is 42105545.

545501240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7361 + ... + 33840.

Almost surely, 2^545501240 is an apocalyptic number.

It is an amenable number.

545501240 is an abundant number, since it is smaller than the sum of its proper divisors (685614520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545501240 is a wasteful number, since it uses less digits than its factorization.

545501240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41543 (or 41539 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 545501240 is about 23355.9679739462. The cubic root of 545501240 is about 817.0812551802.

Adding to 545501240 its reverse (42105545), we get a palindrome (587606785).

The spelling of 545501240 in words is "five hundred forty-five million, five hundred one thousand, two hundred forty".