41520250421 has 4 divisors (see below), whose sum is σ = 44714115852. Its totient is φ = 38326384992.

The previous prime is 41520250411. The next prime is 41520250483. The reversal of 41520250421 is 12405202514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2321794225 + 39198456196 = 48185^2 + 197986^2 .

It is a cyclic number.

It is not a de Polignac number, because 41520250421 - 2¹⁴ = 41520234037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41520250411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596932696 + ... + 1596932721.

It is an arithmetic number, because the mean of its divisors is an integer number (11178528963).

Almost surely, 2^41520250421 is an apocalyptic number.

It is an amenable number.

41520250421 is a deficient number, since it is larger than the sum of its proper divisors (3193865431).

41520250421 is a wasteful number, since it uses less digits than its factorization.

41520250421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193865430.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 41520250421 its reverse (12405202514), we get a palindrome (53925452935).

The spelling of 41520250421 in words is "forty-one billion, five hundred twenty million, two hundred fifty thousand, four hundred twenty-one".