5421500523 has 12 divisors (see below), whose sum is σ = 7908592848. Its totient is φ = 3578547600.

The previous prime is 5421500519. The next prime is 5421500543. The reversal of 5421500523 is 3250051245.

It is a happy number.

It is not a de Polignac number, because 5421500523 - 2² = 5421500519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421500543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2981215 + ... + 2983032.

It is an arithmetic number, because the mean of its divisors is an integer number (659049404).

Almost surely, 2^5421500523 is an apocalyptic number.

5421500523 is a deficient number, since it is larger than the sum of its proper divisors (2487092325).

5421500523 is a wasteful number, since it uses less digits than its factorization.

5421500523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964354 (or 5964351 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 5421500523 is about 73630.8394831948. The cubic root of 5421500523 is about 1756.7360005896.

Adding to 5421500523 its reverse (3250051245), we get a palindrome (8671551768).

The spelling of 5421500523 in words is "five billion, four hundred twenty-one million, five hundred thousand, five hundred twenty-three".