5621507534 has 16 divisors (see below), whose sum is σ = 8536266000. Its totient is φ = 2776154304.

The previous prime is 5621507531. The next prime is 5621507539. The reversal of 5621507534 is 4357051265.

It is a happy number.

It is a super-2 number, since 2×5621507534² = 63202693909637522312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621507531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151892 + ... + 185240.

It is an arithmetic number, because the mean of its divisors is an integer number (533516625).

Almost surely, 2^5621507534 is an apocalyptic number.

5621507534 is a deficient number, since it is larger than the sum of its proper divisors (2914758466).

5621507534 is a wasteful number, since it uses less digits than its factorization.

5621507534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34387.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 5621507534 is about 74976.7132781906. The cubic root of 5621507534 is about 1778.0785070375.

Adding to 5621507534 its reverse (4357051265), we get a palindrome (9978558799).

The spelling of 5621507534 in words is "five billion, six hundred twenty-one million, five hundred seven thousand, five hundred thirty-four".