653247155 has 16 divisors (see below), whose sum is σ = 857516544. Its totient is φ = 473779680.

The previous prime is 653247149. The next prime is 653247157. The reversal of 653247155 is 551742356.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-653247155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653247157) 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, 4004 + ... + 36366.

It is an arithmetic number, because the mean of its divisors is an integer number (53594784).

Almost surely, 2^653247155 is an apocalyptic number.

653247155 is a deficient number, since it is larger than the sum of its proper divisors (204269389).

653247155 is a wasteful number, since it uses less digits than its factorization.

653247155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32746.

The product of its digits is 126000, while the sum is 38.

The square root of 653247155 is about 25558.7001821298. The cubic root of 653247155 is about 867.6791779979.

The spelling of 653247155 in words is "six hundred fifty-three million, two hundred forty-seven thousand, one hundred fifty-five".