47055397 has 2 divisors, whose sum is σ = 47055398. Its totient is φ = 47055396.

The previous prime is 47055377. The next prime is 47055431. The reversal of 47055397 is 79355074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44076321 + 2979076 = 6639^2 + 1726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47055397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47055367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23527698 + 23527699.

It is an arithmetic number, because the mean of its divisors is an integer number (23527699).

Almost surely, 2^47055397 is an apocalyptic number.

It is an amenable number.

47055397 is a deficient number, since it is larger than the sum of its proper divisors (1).

47055397 is an equidigital number, since it uses as much as digits as its factorization.

47055397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 47055397 is about 6859.6936520518. The cubic root of 47055397 is about 361.0243382583.

The spelling of 47055397 in words is "forty-seven million, fifty-five thousand, three hundred ninety-seven".