7216501525 has 12 divisors (see below), whose sum is σ = 8962398592. Its totient is φ = 5764209840.

The previous prime is 7216501517. The next prime is 7216501609. The reversal of 7216501525 is 5251056127.

It is not a de Polignac number, because 7216501525 - 2³ = 7216501517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208389 + ... + 240538.

Almost surely, 2^7216501525 is an apocalyptic number.

It is an amenable number.

7216501525 is a deficient number, since it is larger than the sum of its proper divisors (1745897067).

7216501525 is a wasteful number, since it uses less digits than its factorization.

7216501525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449580 (or 449575 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 7216501525 is about 84949.9942613300. The cubic root of 7216501525 is about 1932.4528332161.

The spelling of 7216501525 in words is "seven billion, two hundred sixteen million, five hundred one thousand, five hundred twenty-five".