655519452 has 36 divisors (see below), whose sum is σ = 1779268680. Its totient is φ = 187291104.

The previous prime is 655519367. The next prime is 655519453. The reversal of 655519452 is 254915556.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655519453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556827 + ... + 558002.

It is an arithmetic number, because the mean of its divisors is an integer number (49424130).

Almost surely, 2^655519452 is an apocalyptic number.

It is an amenable number.

655519452 is an abundant number, since it is smaller than the sum of its proper divisors (1123749228).

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

655519452 is a wasteful number, since it uses less digits than its factorization.

655519452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114850 (or 1114841 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The square root of 655519452 is about 25603.1141074675. The cubic root of 655519452 is about 868.6840774504.

The spelling of 655519452 in words is "six hundred fifty-five million, five hundred nineteen thousand, four hundred fifty-two".