7522021337 has 2 divisors, whose sum is σ = 7522021338. Its totient is φ = 7522021336.

The previous prime is 7522021307. The next prime is 7522021369. The reversal of 7522021337 is 7331202257.

It is an a-pointer prime, because the next prime (7522021369) can be obtained adding 7522021337 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6787123456 + 734897881 = 82384^2 + 27109^2 .

It is a cyclic number.

It is not a de Polignac number, because 7522021337 - 2¹² = 7522017241 is a prime.

It is not a weakly prime, because it can be changed into another prime (7522021307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3761010668 + 3761010669.

It is an arithmetic number, because the mean of its divisors is an integer number (3761010669).

Almost surely, 2^7522021337 is an apocalyptic number.

It is an amenable number.

7522021337 is a deficient number, since it is larger than the sum of its proper divisors (1).

7522021337 is an equidigital number, since it uses as much as digits as its factorization.

7522021337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 7522021337 is about 86729.5874370448. The cubic root of 7522021337 is about 1959.3477401493.

The spelling of 7522021337 in words is "seven billion, five hundred twenty-two million, twenty-one thousand, three hundred thirty-seven".