655153730 has 32 divisors (see below), whose sum is σ = 1470268800. Its totient is φ = 204203520.

The previous prime is 655153699. The next prime is 655153739. The reversal of 655153730 is 37351556.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (655153739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424655 + ... + 426194.

It is an arithmetic number, because the mean of its divisors is an integer number (45945900).

Almost surely, 2^655153730 is an apocalyptic number.

655153730 is an abundant number, since it is smaller than the sum of its proper divisors (815115070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655153730 is a wasteful number, since it uses less digits than its factorization.

655153730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850874.

The product of its (nonzero) digits is 47250, while the sum is 35.

The square root of 655153730 is about 25595.9709720104. The cubic root of 655153730 is about 868.5224977150.

The spelling of 655153730 in words is "six hundred fifty-five million, one hundred fifty-three thousand, seven hundred thirty".