40523450551 has 2 divisors, whose sum is σ = 40523450552. Its totient is φ = 40523450550.

The previous prime is 40523450497. The next prime is 40523450581. The reversal of 40523450551 is 15505432504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40523450551 - 2¹⁷ = 40523319479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40523450581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20261725275 + 20261725276.

It is an arithmetic number, because the mean of its divisors is an integer number (20261725276).

Almost surely, 2^40523450551 is an apocalyptic number.

40523450551 is a deficient number, since it is larger than the sum of its proper divisors (1).

40523450551 is an equidigital number, since it uses as much as digits as its factorization.

40523450551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 40523450551 in words is "forty billion, five hundred twenty-three million, four hundred fifty thousand, five hundred fifty-one".