7630531531 has 4 divisors (see below), whose sum is σ = 8720607472. Its totient is φ = 6540455592.

The previous prime is 7630531523. The next prime is 7630531603. The reversal of 7630531531 is 1351350367.

7630531531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1351350367 = 2297 ⋅588311.

It is a cyclic number.

It is not a de Polignac number, because 7630531531 - 2³ = 7630531523 is a prime.

It is a super-2 number, since 2×7630531531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7630531511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545037960 + ... + 545037973.

It is an arithmetic number, because the mean of its divisors is an integer number (2180151868).

Almost surely, 2^7630531531 is an apocalyptic number.

7630531531 is a deficient number, since it is larger than the sum of its proper divisors (1090075941).

7630531531 is a wasteful number, since it uses less digits than its factorization.

7630531531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090075940.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 7630531531 is about 87352.9136949650. The cubic root of 7630531531 is about 1968.7244296456.

Adding to 7630531531 its reverse (1351350367), we get a palindrome (8981881898).

The spelling of 7630531531 in words is "seven billion, six hundred thirty million, five hundred thirty-one thousand, five hundred thirty-one".