655553250403 has 4 divisors (see below), whose sum is σ = 655558369648. Its totient is φ = 655548131160.

The previous prime is 655553250371. The next prime is 655553250437. The reversal of 655553250403 is 304052355556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655553250403 - 2⁵ = 655553250371 is a prime.

It is a super-2 number, since 2×655553250403² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655553250403.

It is not an unprimeable number, because it can be changed into a prime (655553650403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362476 + ... + 2625337.

It is an arithmetic number, because the mean of its divisors is an integer number (163889592412).

Almost surely, 2^655553250403 is an apocalyptic number.

655553250403 is a deficient number, since it is larger than the sum of its proper divisors (5119245).

655553250403 is a wasteful number, since it uses less digits than its factorization.

655553250403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119244.

The product of its (nonzero) digits is 1350000, while the sum is 43.

The spelling of 655553250403 in words is "six hundred fifty-five billion, five hundred fifty-three million, two hundred fifty thousand, four hundred three".