240025897 has 2 divisors, whose sum is σ = 240025898. Its totient is φ = 240025896.

The previous prime is 240025883. The next prime is 240025939. The reversal of 240025897 is 798520042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175721536 + 64304361 = 13256^2 + 8019^2 .

It is a cyclic number.

It is not a de Polignac number, because 240025897 - 2¹⁹ = 239501609 is a prime.

It is a super-2 number, since 2×240025897² = 115224862461309218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240025847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120012948 + 120012949.

It is an arithmetic number, because the mean of its divisors is an integer number (120012949).

Almost surely, 2^240025897 is an apocalyptic number.

It is an amenable number.

240025897 is a deficient number, since it is larger than the sum of its proper divisors (1).

240025897 is an equidigital number, since it uses as much as digits as its factorization.

240025897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 240025897 is about 15492.7691843647. The cubic root of 240025897 is about 621.4688526091.

The spelling of 240025897 in words is "two hundred forty million, twenty-five thousand, eight hundred ninety-seven".