7225021572 has 48 divisors (see below), whose sum is σ = 17556306432. Its totient is φ = 2310013440.

The previous prime is 7225021553. The next prime is 7225021619. The reversal of 7225021572 is 2751205227.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43903 + ... + 127974.

It is an arithmetic number, because the mean of its divisors is an integer number (365756384).

Almost surely, 2^7225021572 is an apocalyptic number.

It is an amenable number.

7225021572 is an abundant number, since it is smaller than the sum of its proper divisors (10331284860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7225021572 is a wasteful number, since it uses less digits than its factorization.

7225021572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172028 (or 172026 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 7225021572 is about 85000.1268940229. The cubic root of 7225021572 is about 1933.2130406196.

Adding to 7225021572 its reverse (2751205227), we get a palindrome (9976226799).

The spelling of 7225021572 in words is "seven billion, two hundred twenty-five million, twenty-one thousand, five hundred seventy-two".