1851150625 has 15 divisors (see below), whose sum is σ = 2314542703. Its totient is φ = 1480060000.

The previous prime is 1851150599. The next prime is 1851150629. The reversal of 1851150625 is 5260511581.

The square root of 1851150625 is 43025.

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

It can be written as a sum of positive squares in 7 ways, for example, as 990549729 + 860600896 = 31473^2 + 29336^2 .

It is not a de Polignac number, because 1851150625 - 2⁵ = 1851150593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1851150629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1074765 + ... + 1076485.

Almost surely, 2^1851150625 is an apocalyptic number.

1851150625 is the 43025-th square number.

1851150625 is the 21513-rd centered octagonal number.

It is an amenable number.

1851150625 is a deficient number, since it is larger than the sum of its proper divisors (463392078).

1851150625 is an frugal number, since it uses more digits than its factorization.

1851150625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 34.

The cubic root of 1851150625 is about 1227.8554794698.

The spelling of 1851150625 in words is "one billion, eight hundred fifty-one million, one hundred fifty thousand, six hundred twenty-five".