7382552821 has 16 divisors (see below), whose sum is σ = 8935799040. Its totient is φ = 5954146560.

The previous prime is 7382552789. The next prime is 7382552867. The reversal of 7382552821 is 1282552837.

It is a cyclic number.

It is not a de Polignac number, because 7382552821 - 2⁵ = 7382552789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7382552321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813135 + ... + 822163.

It is an arithmetic number, because the mean of its divisors is an integer number (558487440).

Almost surely, 2^7382552821 is an apocalyptic number.

It is an amenable number.

7382552821 is a deficient number, since it is larger than the sum of its proper divisors (1553246219).

7382552821 is a wasteful number, since it uses less digits than its factorization.

7382552821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924.

The product of its digits is 268800, while the sum is 43.

The square root of 7382552821 is about 85921.7831577069. The cubic root of 7382552821 is about 1947.1624581838.

The spelling of 7382552821 in words is "seven billion, three hundred eighty-two million, five hundred fifty-two thousand, eight hundred twenty-one".