1520422563 has 8 divisors (see below), whose sum is σ = 2211523776. Its totient is φ = 921468200.

The previous prime is 1520422529. The next prime is 1520422573. The reversal of 1520422563 is 3652240251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1520422563 - 2⁸ = 1520422307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1520422563.

It is not an unprimeable number, because it can be changed into a prime (1520422513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23036673 + ... + 23036738.

It is an arithmetic number, because the mean of its divisors is an integer number (276440472).

Almost surely, 2^1520422563 is an apocalyptic number.

1520422563 is a deficient number, since it is larger than the sum of its proper divisors (691101213).

1520422563 is a wasteful number, since it uses less digits than its factorization.

1520422563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46073425.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1520422563 is about 38992.5962587771. The cubic root of 1520422563 is about 1149.8859528994.

The spelling of 1520422563 in words is "one billion, five hundred twenty million, four hundred twenty-two thousand, five hundred sixty-three".