39955051 has 2 divisors, whose sum is σ = 39955052. Its totient is φ = 39955050.

The previous prime is 39955031. The next prime is 39955067. The reversal of 39955051 is 15055993.

39955051 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 is a cyclic number.

It is not a de Polignac number, because 39955051 - 2¹³ = 39946859 is a prime.

It is a super-2 number, since 2×39955051² = 3192812200825202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39955051.

It is not a weakly prime, because it can be changed into another prime (39955031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19977525 + 19977526.

It is an arithmetic number, because the mean of its divisors is an integer number (19977526).

Almost surely, 2^39955051 is an apocalyptic number.

39955051 is a deficient number, since it is larger than the sum of its proper divisors (1).

39955051 is an equidigital number, since it uses as much as digits as its factorization.

39955051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 39955051 is about 6321.0007910140. Note that the first 3 decimals coincide. The cubic root of 39955051 is about 341.8670384732.

The spelling of 39955051 in words is "thirty-nine million, nine hundred fifty-five thousand, fifty-one".