47205457 has 16 divisors (see below), whose sum is σ = 52291008. Its totient is φ = 42344640.

The previous prime is 47205439. The next prime is 47205461. The reversal of 47205457 is 75450274.

It is a de Polignac number, because none of the positive numbers 2^k-47205457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47205427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89998 + ... + 90520.

It is an arithmetic number, because the mean of its divisors is an integer number (3268188).

Almost surely, 2^47205457 is an apocalyptic number.

It is an amenable number.

47205457 is a deficient number, since it is larger than the sum of its proper divisors (5085551).

47205457 is a wasteful number, since it uses less digits than its factorization.

47205457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 47205457 is about 6870.6227519782. The cubic root of 47205457 is about 361.4077007698.

The spelling of 47205457 in words is "forty-seven million, two hundred five thousand, four hundred fifty-seven".