1003555245 has 48 divisors (see below), whose sum is σ = 2017088640. Its totient is φ = 417056640.

The previous prime is 1003555229. The next prime is 1003555253. The reversal of 1003555245 is 5425553001.

It is a happy number.

It is not a de Polignac number, because 1003555245 - 2⁴ = 1003555229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26790 + ... + 52199.

It is an arithmetic number, because the mean of its divisors is an integer number (42022680).

Almost surely, 2^1003555245 is an apocalyptic number.

1003555245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1003555245 is an abundant number, since it is smaller than the sum of its proper divisors (1013533395).

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

1003555245 is a wasteful number, since it uses less digits than its factorization.

1003555245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79026 (or 79015 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 1003555245 is about 31678.9400864360. The cubic root of 1003555245 is about 1001.1836800155.

The spelling of 1003555245 in words is "one billion, three million, five hundred fifty-five thousand, two hundred forty-five".