894381097502025 has 243 divisors, whose sum is σ = 1872159461558919. Its totient is φ = 406963637640000.

The previous prime is 894381097501967. The next prime is 894381097502041. The reversal of 894381097502025 is 520205790183498.

The square root of 894381097502025 is 29906205.

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

894381097502025 is a `hidden beast` number, since 8 + 9 + 4 + 3 + 8 + 10 + 97 + 502 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 321977195100729 + 572403902401296 = 17943723^2 + 23924964^2 .

It is not a de Polignac number, because 894381097502025 - 2²⁷ = 894380963284297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 850981062750 + ... + 850981063800.

Almost surely, 2^{894381097502025} is an apocalyptic number.

894381097502025 is the 29906205-th square number.

894381097502025 is the 14953103-rd centered octagonal number.

It is an amenable number.

894381097502025 is an abundant number, since it is smaller than the sum of its proper divisors (977778364056894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

894381097502025 is an equidigital number, since it uses as much as digits as its factorization.

894381097502025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 894381097502025 in words is "eight hundred ninety-four trillion, three hundred eighty-one billion, ninety-seven million, five hundred two thousand, twenty-five".