611223012025 has 24 divisors (see below), whose sum is σ = 812168580384. Its totient is φ = 454670188800.

The previous prime is 611223012019. The next prime is 611223012053. The reversal of 611223012025 is 520210322116.

It is not a de Polignac number, because 611223012025 - 2²¹ = 611220914873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8628411 + ... + 8698960.

It is an arithmetic number, because the mean of its divisors is an integer number (33840357516).

Almost surely, 2^611223012025 is an apocalyptic number.

It is an amenable number.

611223012025 is a deficient number, since it is larger than the sum of its proper divisors (200945568359).

611223012025 is a wasteful number, since it uses less digits than its factorization.

611223012025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17327481 (or 17327476 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 611223012025 in words is "six hundred eleven billion, two hundred twenty-three million, twelve thousand, twenty-five".