7263652521 has 24 divisors (see below), whose sum is σ = 10047330720. Its totient is φ = 4667242752.

The previous prime is 7263652511. The next prime is 7263652547. The reversal of 7263652521 is 1252563627.

It is a happy number.

It is not a de Polignac number, because 7263652521 - 2⁵ = 7263652489 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7263652521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7263652511) 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, 431185 + ... + 447713.

It is an arithmetic number, because the mean of its divisors is an integer number (418638780).

Almost surely, 2^7263652521 is an apocalyptic number.

It is an amenable number.

7263652521 is a deficient number, since it is larger than the sum of its proper divisors (2783678199).

7263652521 is a wasteful number, since it uses less digits than its factorization.

7263652521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16713 (or 16676 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 7263652521 is about 85227.0644865820. The cubic root of 7263652521 is about 1936.6524372557.

The spelling of 7263652521 in words is "seven billion, two hundred sixty-three million, six hundred fifty-two thousand, five hundred twenty-one".