38920051 has 2 divisors, whose sum is σ = 38920052. Its totient is φ = 38920050.

The previous prime is 38920043. The next prime is 38920067. The reversal of 38920051 is 15002983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38920051 - 2³ = 38920043 is a prime.

It is not a weakly prime, because it can be changed into another prime (38920351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19460025 + 19460026.

It is an arithmetic number, because the mean of its divisors is an integer number (19460026).

Almost surely, 2^38920051 is an apocalyptic number.

38920051 is a deficient number, since it is larger than the sum of its proper divisors (1).

38920051 is an equidigital number, since it uses as much as digits as its factorization.

38920051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 38920051 is about 6238.5936716539. The cubic root of 38920051 is about 338.8892558906.

The spelling of 38920051 in words is "thirty-eight million, nine hundred twenty thousand, fifty-one".