190578025 has 27 divisors (see below), whose sum is σ = 260792119. Its totient is φ = 138050000.

The previous prime is 190578019. The next prime is 190578029. The reversal of 190578025 is 520875091.

The square root of 190578025 is 13805.

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., 68608089 + 121969936 = 8283^2 + 11044^2 .

It is not a de Polignac number, because 190578025 - 2¹³ = 190569833 is a prime.

It is a super-2 number, since 2×190578025² = 72639967225801250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190578029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 759150 + ... + 759400.

Almost surely, 2^190578025 is an apocalyptic number.

190578025 is the 13805-th square number.

190578025 is the 6903-rd centered octagonal number.

It is an amenable number.

190578025 is a deficient number, since it is larger than the sum of its proper divisors (70214094).

190578025 is an equidigital number, since it uses as much as digits as its factorization.

190578025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The cubic root of 190578025 is about 575.4721012501.

The spelling of 190578025 in words is "one hundred ninety million, five hundred seventy-eight thousand, twenty-five".