240555025 has 24 divisors (see below), whose sum is σ = 304929144. Its totient is φ = 188198400.

The previous prime is 240555011. The next prime is 240555031. The reversal of 240555025 is 520555042.

It can be written as a sum of positive squares in 12 ways, for example, as 86099841 + 154455184 = 9279^2 + 12428^2 .

It is not a de Polignac number, because 240555025 - 2¹⁵ = 240522257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240554984 and 240555002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354987 + ... + 355663.

It is an arithmetic number, because the mean of its divisors is an integer number (12705381).

Almost surely, 2^240555025 is an apocalyptic number.

240555025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240555025 is a deficient number, since it is larger than the sum of its proper divisors (64374119).

240555025 is a wasteful number, since it uses less digits than its factorization.

240555025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 240555025 is about 15509.8363950107. The cubic root of 240555025 is about 621.9251856336.

The spelling of 240555025 in words is "two hundred forty million, five hundred fifty-five thousand, twenty-five".