611625225 has 24 divisors (see below), whose sum is σ = 1046093760. Its totient is φ = 314950720.

The previous prime is 611625197. The next prime is 611625229. The reversal of 611625225 is 522526116.

It is not a de Polignac number, because 611625225 - 2¹³ = 611617033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 611625192 and 611625201.

It is not an unprimeable number, because it can be changed into a prime (611625229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138429 + ... + 142778.

It is an arithmetic number, because the mean of its divisors is an integer number (43587240).

Almost surely, 2^611625225 is an apocalyptic number.

It is an amenable number.

611625225 is a deficient number, since it is larger than the sum of its proper divisors (434468535).

611625225 is a wasteful number, since it uses less digits than its factorization.

611625225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281249 (or 281244 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 611625225 is about 24731.0579029689. The cubic root of 611625225 is about 848.8451328993.

The spelling of 611625225 in words is "six hundred eleven million, six hundred twenty-five thousand, two hundred twenty-five".