45720523 has 2 divisors, whose sum is σ = 45720524. Its totient is φ = 45720522.

The previous prime is 45720487. The next prime is 45720581. The reversal of 45720523 is 32502754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45720523 - 2⁹ = 45720011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45720491 and 45720500.

It is not a weakly prime, because it can be changed into another prime (45720823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22860261 + 22860262.

It is an arithmetic number, because the mean of its divisors is an integer number (22860262).

Almost surely, 2^45720523 is an apocalyptic number.

45720523 is a deficient number, since it is larger than the sum of its proper divisors (1).

45720523 is an equidigital number, since it uses as much as digits as its factorization.

45720523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 45720523 is about 6761.6952755947. The cubic root of 45720523 is about 357.5776752667.

The spelling of 45720523 in words is "forty-five million, seven hundred twenty thousand, five hundred twenty-three".