1225676503 has 4 divisors (see below), whose sum is σ = 1267941240. Its totient is φ = 1183411768.

The previous prime is 1225676449. The next prime is 1225676519. The reversal of 1225676503 is 3056765221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3056765221 = 4259 ⋅717719.

It is a cyclic number.

It is not a de Polignac number, because 1225676503 - 2²¹ = 1223579351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225676593) 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, 21132325 + ... + 21132382.

It is an arithmetic number, because the mean of its divisors is an integer number (316985310).

Almost surely, 2^1225676503 is an apocalyptic number.

1225676503 is a deficient number, since it is larger than the sum of its proper divisors (42264737).

1225676503 is an equidigital number, since it uses as much as digits as its factorization.

1225676503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42264736.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 1225676503 is about 35009.6629946648. The cubic root of 1225676503 is about 1070.1844102340.

The spelling of 1225676503 in words is "one billion, two hundred twenty-five million, six hundred seventy-six thousand, five hundred three".