42520053461 has 2 divisors, whose sum is σ = 42520053462. Its totient is φ = 42520053460.

The previous prime is 42520053409. The next prime is 42520053473. The reversal of 42520053461 is 16435002524.

42520053461 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., 39004275025 + 3515778436 = 197495^2 + 59294^2 .

It is a cyclic number.

It is not a de Polignac number, because 42520053461 - 2²² = 42515859157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42520053481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260026730 + 21260026731.

It is an arithmetic number, because the mean of its divisors is an integer number (21260026731).

Almost surely, 2^42520053461 is an apocalyptic number.

It is an amenable number.

42520053461 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520053461 is an equidigital number, since it uses as much as digits as its factorization.

42520053461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 42520053461 its reverse (16435002524), we get a palindrome (58955055985).

The spelling of 42520053461 in words is "forty-two billion, five hundred twenty million, fifty-three thousand, four hundred sixty-one".