1520053653 has 16 divisors (see below), whose sum is σ = 2048181696. Its totient is φ = 1002693120.

The previous prime is 1520053643. The next prime is 1520053699. The reversal of 1520053653 is 3563500251.

It is not a de Polignac number, because 1520053653 - 2¹⁶ = 1519988117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520053653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520053603) 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, 133251 + ... + 144207.

It is an arithmetic number, because the mean of its divisors is an integer number (128011356).

Almost surely, 2^1520053653 is an apocalyptic number.

It is an amenable number.

1520053653 is a deficient number, since it is larger than the sum of its proper divisors (528128043).

1520053653 is a wasteful number, since it uses less digits than its factorization.

1520053653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1520053653 is about 38987.8654583705. The cubic root of 1520053653 is about 1149.7929439445.

The spelling of 1520053653 in words is "one billion, five hundred twenty million, fifty-three thousand, six hundred fifty-three".