47408551 has 2 divisors, whose sum is σ = 47408552. Its totient is φ = 47408550.

The previous prime is 47408519. The next prime is 47408573. The reversal of 47408551 is 15580474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47408551 - 2⁵ = 47408519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47478551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23704275 + 23704276.

It is an arithmetic number, because the mean of its divisors is an integer number (23704276).

Almost surely, 2^47408551 is an apocalyptic number.

47408551 is a deficient number, since it is larger than the sum of its proper divisors (1).

47408551 is an equidigital number, since it uses as much as digits as its factorization.

47408551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 47408551 is about 6885.3867719976. The cubic root of 47408551 is about 361.9252590321.

The spelling of 47408551 in words is "forty-seven million, four hundred eight thousand, five hundred fifty-one".