655142550 has 24 divisors (see below), whose sum is σ = 1624753896. Its totient is φ = 174704640.

The previous prime is 655142531. The next prime is 655142563. The reversal of 655142550 is 55241556.

655142550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2183659 + ... + 2183958.

It is an arithmetic number, because the mean of its divisors is an integer number (67698079).

Almost surely, 2^655142550 is an apocalyptic number.

655142550 is an abundant number, since it is smaller than the sum of its proper divisors (969611346).

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

655142550 is a wasteful number, since it uses less digits than its factorization.

655142550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367632 (or 4367627 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 655142550 is about 25595.7525773320. The cubic root of 655142550 is about 868.5175573291.

The spelling of 655142550 in words is "six hundred fifty-five million, one hundred forty-two thousand, five hundred fifty".