612407825 has 6 divisors (see below), whose sum is σ = 759385734. Its totient is φ = 489926240.

The previous prime is 612407801. The next prime is 612407837. The reversal of 612407825 is 528704216.

It can be written as a sum of positive squares in 3 ways, for example, as 5721664 + 606686161 = 2392^2 + 24631^2 .

It is not a de Polignac number, because 612407825 - 2⁸ = 612407569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12248132 + ... + 12248181.

It is an arithmetic number, because the mean of its divisors is an integer number (126564289).

Almost surely, 2^612407825 is an apocalyptic number.

It is an amenable number.

612407825 is a deficient number, since it is larger than the sum of its proper divisors (146977909).

612407825 is a wasteful number, since it uses less digits than its factorization.

612407825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24496323 (or 24496318 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 612407825 is about 24746.8750552469. The cubic root of 612407825 is about 849.2070228494.

The spelling of 612407825 in words is "six hundred twelve million, four hundred seven thousand, eight hundred twenty-five".