7292520745 has 4 divisors (see below), whose sum is σ = 8751024900. Its totient is φ = 5834016592.

The previous prime is 7292520713. The next prime is 7292520749. The reversal of 7292520745 is 5470252927.

7292520745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1040772121 + 6251748624 = 32261^2 + 79068^2 .

It is a cyclic number.

It is not a de Polignac number, because 7292520745 - 2⁵ = 7292520713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7292520749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729252070 + ... + 729252079.

It is an arithmetic number, because the mean of its divisors is an integer number (2187756225).

Almost surely, 2^7292520745 is an apocalyptic number.

It is an amenable number.

7292520745 is a deficient number, since it is larger than the sum of its proper divisors (1458504155).

7292520745 is a wasteful number, since it uses less digits than its factorization.

7292520745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458504154.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 7292520745 is about 85396.2572072102. The cubic root of 7292520745 is about 1939.2146841826.

The spelling of 7292520745 in words is "seven billion, two hundred ninety-two million, five hundred twenty thousand, seven hundred forty-five".