612392328025 has 9 divisors (see below), whose sum is σ = 759371338623. Its totient is φ = 489910732200.

The previous prime is 612392328011. The next prime is 612392328043. The reversal of 612392328025 is 520823293216.

The square root of 612392328025 is 782555.

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., 220461238089 + 391931089936 = 469533^2 + 626044^2 .

It is not a de Polignac number, because 612392328025 - 2¹¹ = 612392325977 is a prime.

It is a Duffinian number.

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, 3834520 + ... + 3991030.

Almost surely, 2^612392328025 is an apocalyptic number.

612392328025 is the 782555-th square number.

612392328025 is the 391278-th centered octagonal number.

It is an amenable number.

612392328025 is a deficient number, since it is larger than the sum of its proper divisors (146979010598).

612392328025 is an frugal number, since it uses more digits than its factorization.

612392328025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313032 (or 156516 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 612392328025 in words is "six hundred twelve billion, three hundred ninety-two million, three hundred twenty-eight thousand, twenty-five".