611612825 has 12 divisors (see below), whose sum is σ = 803012220. Its totient is φ = 460508160.

The previous prime is 611612809. The next prime is 611612887. The reversal of 611612825 is 528216116.

It can be written as a sum of positive squares in 6 ways, for example, as 48594841 + 563017984 = 6971^2 + 23728^2 .

It is not a de Polignac number, because 611612825 - 2⁴ = 611612809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 611612791 and 611612800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719120 + ... + 719969.

It is an arithmetic number, because the mean of its divisors is an integer number (66917685).

Almost surely, 2^611612825 is an apocalyptic number.

It is an amenable number.

611612825 is a deficient number, since it is larger than the sum of its proper divisors (191399395).

611612825 is a wasteful number, since it uses less digits than its factorization.

611612825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439116 (or 1439111 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 611612825 is about 24730.8072047800. The cubic root of 611612825 is about 848.8393964067.

The spelling of 611612825 in words is "six hundred eleven million, six hundred twelve thousand, eight hundred twenty-five".