5245031540 has 72 divisors (see below), whose sum is σ = 12864513312. Its totient is φ = 1791048000.

The previous prime is 5245031537. The next prime is 5245031549. The reversal of 5245031540 is 451305425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5245031549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235319 + ... + 256641.

It is an arithmetic number, because the mean of its divisors is an integer number (178673796).

Almost surely, 2^5245031540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5245031540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6432256656).

5245031540 is an abundant number, since it is smaller than the sum of its proper divisors (7619481772).

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

5245031540 is a wasteful number, since it uses less digits than its factorization.

5245031540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21597 (or 21588 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 5245031540 is about 72422.5899840651. The cubic root of 5245031540 is about 1737.4648795758.

Adding to 5245031540 its reverse (451305425), we get a palindrome (5696336965).

The spelling of 5245031540 in words is "five billion, two hundred forty-five million, thirty-one thousand, five hundred forty".