240425557 has 2 divisors, whose sum is σ = 240425558. Its totient is φ = 240425556.

The previous prime is 240425503. The next prime is 240425597. The reversal of 240425557 is 755524042.

240425557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164839921 + 75585636 = 12839^2 + 8694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240425557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240425597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120212778 + 120212779.

It is an arithmetic number, because the mean of its divisors is an integer number (120212779).

Almost surely, 2^240425557 is an apocalyptic number.

It is an amenable number.

240425557 is a deficient number, since it is larger than the sum of its proper divisors (1).

240425557 is an equidigital number, since it uses as much as digits as its factorization.

240425557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 240425557 is about 15505.6620948607. The cubic root of 240425557 is about 621.8135911248.

Adding to 240425557 its reverse (755524042), we get a palindrome (995949599).

The spelling of 240425557 in words is "two hundred forty million, four hundred twenty-five thousand, five hundred fifty-seven".