611530625 has 10 divisors (see below), whose sum is σ = 764169450. Its totient is φ = 489224000.

The previous prime is 611530609. The next prime is 611530643. The reversal of 611530625 is 526035116.

611530625 = T₂₉₆ + T₂₉₇ + ... + T₁₅₄₅.

It can be written as a sum of positive squares in 5 ways, for example, as 348344896 + 263185729 = 18664^2 + 16223^2 .

It is not a de Polignac number, because 611530625 - 2⁴ = 611530609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 488600 + ... + 489849.

It is an arithmetic number, because the mean of its divisors is an integer number (76416945).

Almost surely, 2^611530625 is an apocalyptic number.

It is an amenable number.

611530625 is a deficient number, since it is larger than the sum of its proper divisors (152638825).

611530625 is an frugal number, since it uses more digits than its factorization.

611530625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978469 (or 978454 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 611530625 is about 24729.1452541328. The cubic root of 611530625 is about 848.8013670513.

The spelling of 611530625 in words is "six hundred eleven million, five hundred thirty thousand, six hundred twenty-five".