7620245522 has 4 divisors (see below), whose sum is σ = 11430368286. Its totient is φ = 3810122760.

The previous prime is 7620245489. The next prime is 7620245531. The reversal of 7620245522 is 2255420267.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6960731761 + 659513761 = 83431^2 + 25681^2 .

It is a super-2 number, since 2×7620245522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1905061379 + ... + 1905061382.

Almost surely, 2^7620245522 is an apocalyptic number.

7620245522 is a deficient number, since it is larger than the sum of its proper divisors (3810122764).

7620245522 is a wasteful number, since it uses less digits than its factorization.

7620245522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810122763.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 7620245522 is about 87294.0176758980. The cubic root of 7620245522 is about 1967.8394138320.

Adding to 7620245522 its reverse (2255420267), we get a palindrome (9875665789).

The spelling of 7620245522 in words is "seven billion, six hundred twenty million, two hundred forty-five thousand, five hundred twenty-two".