42240430525 has 12 divisors (see below), whose sum is σ = 52512794100. Its totient is φ = 33705466880.

The previous prime is 42240430483. The next prime is 42240430543. The reversal of 42240430525 is 52503404224.

It can be written as a sum of positive squares in 6 ways, for example, as 13064032804 + 29176397721 = 114298^2 + 170811^2 .

It is not a de Polignac number, because 42240430525 - 2²⁵ = 42206876093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2162020 + ... + 2181469.

It is an arithmetic number, because the mean of its divisors is an integer number (4376066175).

Almost surely, 2^42240430525 is an apocalyptic number.

It is an amenable number.

42240430525 is a deficient number, since it is larger than the sum of its proper divisors (10272363575).

42240430525 is a wasteful number, since it uses less digits than its factorization.

42240430525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343888 (or 4343883 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 42240430525 its reverse (52503404224), we get a palindrome (94743834749).

It can be divided in two parts, 422404 and 30525, that added together give a square (452929 = 673²).

The spelling of 42240430525 in words is "forty-two billion, two hundred forty million, four hundred thirty thousand, five hundred twenty-five".