41251254021 has 24 divisors (see below), whose sum is σ = 61801527424. Its totient is φ = 27496596960.

The previous prime is 41251254019. The next prime is 41251254029. The reversal of 41251254021 is 12045215214.

It is a happy number.

41251254021 is a `hidden beast` number, since 4 + 1 + 251 + 2 + 5 + 402 + 1 = 666.

It is not a de Polignac number, because 41251254021 - 2¹ = 41251254019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41251254029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2881401 + ... + 2895681.

Almost surely, 2^41251254021 is an apocalyptic number.

It is an amenable number.

41251254021 is a deficient number, since it is larger than the sum of its proper divisors (20550273403).

41251254021 is a wasteful number, since it uses less digits than its factorization.

41251254021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26183 (or 26171 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 41251254021 its reverse (12045215214), we get a palindrome (53296469235).

The spelling of 41251254021 in words is "forty-one billion, two hundred fifty-one million, two hundred fifty-four thousand, twenty-one".