2251206025503 has 4 divisors (see below), whose sum is σ = 3001608034008. Its totient is φ = 1500804017000.

The previous prime is 2251206025463. The next prime is 2251206025513. The reversal of 2251206025503 is 3055206021522.

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 2251206025503 - 2²² = 2251201831199 is a prime.

It is a super-2 number, since 2×2251206025503² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251206025513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375201004248 + ... + 375201004253.

It is an arithmetic number, because the mean of its divisors is an integer number (750402008502).

Almost surely, 2^{2251206025503} is an apocalyptic number.

2251206025503 is a deficient number, since it is larger than the sum of its proper divisors (750402008505).

2251206025503 is an equidigital number, since it uses as much as digits as its factorization.

2251206025503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750402008504.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 2251206025503 in words is "two trillion, two hundred fifty-one billion, two hundred six million, twenty-five thousand, five hundred three".