855455625 has 30 divisors (see below), whose sum is σ = 1544088546. Its totient is φ = 456240000.

The previous prime is 855455603. The next prime is 855455647. The reversal of 855455625 is 526554558.

855455625 is a `hidden beast` number, since 85 + 5 + 4 + 5 + 562 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (855455603) and next prime (855455647).

It can be written as a sum of positive squares in 5 ways, for example, as 436475664 + 418979961 = 20892^2 + 20469^2 .

It is not a de Polignac number, because 855455625 - 2¹³ = 855447433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 70416 + ... + 81665.

Almost surely, 2^855455625 is an apocalyptic number.

It is an amenable number.

855455625 is a deficient number, since it is larger than the sum of its proper divisors (688632921).

855455625 is a wasteful number, since it uses less digits than its factorization.

855455625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152107 (or 152089 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The square root of 855455625 is about 29248.1730198657. The cubic root of 855455625 is about 949.2905599029.

The spelling of 855455625 in words is "eight hundred fifty-five million, four hundred fifty-five thousand, six hundred twenty-five".