52240545 has 40 divisors (see below), whose sum is σ = 107029824. Its totient is φ = 23880096.

The previous prime is 52240543. The next prime is 52240577. The reversal of 52240545 is 54504225.

It is not a de Polignac number, because 52240545 - 2¹ = 52240543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (52240543) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6379 + ... + 12048.

Almost surely, 2^52240545 is an apocalyptic number.

It is an amenable number.

52240545 is an abundant number, since it is smaller than the sum of its proper divisors (54789279).

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

52240545 is a wasteful number, since it uses less digits than its factorization.

52240545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18451 (or 18442 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 52240545 is about 7227.7621017850. The cubic root of 52240545 is about 373.8257669759.

The spelling of 52240545 in words is "fifty-two million, two hundred forty thousand, five hundred forty-five".