20254365235225 has 81 divisors (see below), whose sum is σ = 28222271069853. Its totient is φ = 14408752776000.

The previous prime is 20254365235217. The next prime is 20254365235243. The reversal of 20254365235225 is 52253256345202.

It is a happy number.

The square root of 20254365235225 is 4500485.

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

It can be written as a sum of positive squares in 4 ways, for example, as 12297723389721 + 7956641845504 = 3506811^2 + 2820752^2 .

It is not a de Polignac number, because 20254365235225 - 2³ = 20254365235217 is a prime.

It is a super-2 number, since 2×20254365235225² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 11633752855 + ... + 11633754595.

Almost surely, 2^{20254365235225} is an apocalyptic number.

20254365235225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20254365235225 is the 4500485-th square number.

20254365235225 is the 2250243-rd centered octagonal number.

It is an amenable number.

20254365235225 is a deficient number, since it is larger than the sum of its proper divisors (7967905834628).

20254365235225 is an frugal number, since it uses more digits than its factorization.

20254365235225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 46.

The spelling of 20254365235225 in words is "twenty trillion, two hundred fifty-four billion, three hundred sixty-five million, two hundred thirty-five thousand, two hundred twenty-five".