47075551 has 2 divisors, whose sum is σ = 47075552. Its totient is φ = 47075550.

The previous prime is 47075543. The next prime is 47075557. The reversal of 47075551 is 15557074.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47075551 - 2³ = 47075543 is a prime.

It is a super-2 number, since 2×47075551² = 4432215003907202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47075557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23537775 + 23537776.

It is an arithmetic number, because the mean of its divisors is an integer number (23537776).

Almost surely, 2^47075551 is an apocalyptic number.

47075551 is a deficient number, since it is larger than the sum of its proper divisors (1).

47075551 is an equidigital number, since it uses as much as digits as its factorization.

47075551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 47075551 is about 6861.1625108286. The cubic root of 47075551 is about 361.0758735864.

The spelling of 47075551 in words is "forty-seven million, seventy-five thousand, five hundred fifty-one".