40551201105251 has 4 divisors (see below), whose sum is σ = 40551422931552. Its totient is φ = 40550979278952.

The previous prime is 40551201105211. The next prime is 40551201105257. The reversal of 40551201105251 is 15250110215504.

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

It is a cyclic number.

It is not a de Polignac number, because 40551201105251 - 2¹⁸ = 40551200843107 is a prime.

It is a super-2 number, since 2×40551201105251² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40551201105257) 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, 110638715 + ... + 111004628.

It is an arithmetic number, because the mean of its divisors is an integer number (10137855732888).

Almost surely, 2^{40551201105251} is an apocalyptic number.

40551201105251 is a deficient number, since it is larger than the sum of its proper divisors (221826301).

40551201105251 is a wasteful number, since it uses less digits than its factorization.

40551201105251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221826300.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 40551201105251 in words is "forty trillion, five hundred fifty-one billion, two hundred one million, one hundred five thousand, two hundred fifty-one".