7212530525 has 24 divisors (see below), whose sum is σ = 9251788800. Its totient is φ = 5571950400.

The previous prime is 7212530513. The next prime is 7212530537. The reversal of 7212530525 is 5250352127.

It is an interprime number because it is at equal distance from previous prime (7212530513) and next prime (7212530537).

It is a de Polignac number, because none of the positive numbers 2^k-7212530525 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7212530491 and 7212530500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361511 + ... + 380939.

It is an arithmetic number, because the mean of its divisors is an integer number (385491200).

Almost surely, 2^7212530525 is an apocalyptic number.

It is an amenable number.

7212530525 is a deficient number, since it is larger than the sum of its proper divisors (2039258275).

7212530525 is a wasteful number, since it uses less digits than its factorization.

7212530525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19949 (or 19944 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 7212530525 is about 84926.6184714781. The cubic root of 7212530525 is about 1932.0983134097.

The spelling of 7212530525 in words is "seven billion, two hundred twelve million, five hundred thirty thousand, five hundred twenty-five".