2251555535 has 8 divisors (see below), whose sum is σ = 2703172560. Its totient is φ = 1800373824.

The previous prime is 2251555511. The next prime is 2251555543. The reversal of 2251555535 is 5355551522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251555535 - 2¹² = 2251551439 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 97337 + ... + 118226.

It is an arithmetic number, because the mean of its divisors is an integer number (337896570).

Almost surely, 2^2251555535 is an apocalyptic number.

2251555535 is a deficient number, since it is larger than the sum of its proper divisors (451617025).

2251555535 is a wasteful number, since it uses less digits than its factorization.

2251555535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217657.

The product of its digits is 187500, while the sum is 38.

The square root of 2251555535 is about 47450.5588481316. The cubic root of 2251555535 is about 1310.6726019831.

The spelling of 2251555535 in words is "two billion, two hundred fifty-one million, five hundred fifty-five thousand, five hundred thirty-five".