611253403 has 4 divisors (see below), whose sum is σ = 611303488. Its totient is φ = 611203320.

The previous prime is 611253353. The next prime is 611253421. The reversal of 611253403 is 304352116.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 611253403 - 2¹³ = 611245211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611253463) 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, 6550 + ... + 35572.

It is an arithmetic number, because the mean of its divisors is an integer number (152825872).

Almost surely, 2^611253403 is an apocalyptic number.

611253403 is a deficient number, since it is larger than the sum of its proper divisors (50085).

611253403 is a wasteful number, since it uses less digits than its factorization.

611253403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50084.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 611253403 is about 24723.5394513003. The cubic root of 611253403 is about 848.6730867610.

The spelling of 611253403 in words is "six hundred eleven million, two hundred fifty-three thousand, four hundred three".