611425503 has 40 divisors (see below), whose sum is σ = 987114128. Its totient is φ = 374927616.

The previous prime is 611425501. The next prime is 611425511. The reversal of 611425503 is 305524116.

611425503 is a `hidden beast` number, since 611 + 42 + 5 + 5 + 0 + 3 = 666.

It is not a de Polignac number, because 611425503 - 2¹ = 611425501 is a prime.

It is a super-2 number, since 2×611425503² = 747682291437606018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611425501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 354000 + ... + 355722.

Almost surely, 2^611425503 is an apocalyptic number.

611425503 is a deficient number, since it is larger than the sum of its proper divisors (375688625).

611425503 is a wasteful number, since it uses less digits than its factorization.

611425503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 611425503 is about 24727.0196950623. The cubic root of 611425503 is about 848.7527279988.

Adding to 611425503 its reverse (305524116), we get a palindrome (916949619).

The spelling of 611425503 in words is "six hundred eleven million, four hundred twenty-five thousand, five hundred three".