610831225 has 9 divisors (see below), whose sum is σ = 757583983. Its totient is φ = 488566120.

The previous prime is 610831183. The next prime is 610831231. The reversal of 610831225 is 522138016.

The square root of 610831225 is 24715.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 219899241 + 390931984 = 14829^2 + 19772^2 .

It is not a de Polignac number, because 610831225 - 2²⁷ = 476613497 is a prime.

It is a super-2 number, since 2×610831225² = 746229570870001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 610831193 and 610831202.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 121104 + ... + 126046.

Almost surely, 2^610831225 is an apocalyptic number.

610831225 is the 24715-th square number.

610831225 is the 12358-th centered octagonal number.

It is an amenable number.

610831225 is a deficient number, since it is larger than the sum of its proper divisors (146752758).

610831225 is an frugal number, since it uses more digits than its factorization.

610831225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896 (or 4948 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The cubic root of 610831225 is about 848.4776557423.

The spelling of 610831225 in words is "six hundred ten million, eight hundred thirty-one thousand, two hundred twenty-five".