47555457 has 16 divisors (see below), whose sum is σ = 65889792. Its totient is φ = 30476160.

The previous prime is 47555441. The next prime is 47555479. The reversal of 47555457 is 75455574.

It is a happy number.

It is not a de Polignac number, because 47555457 - 2⁴ = 47555441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47555407) 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, 12973 + ... + 16229.

It is an arithmetic number, because the mean of its divisors is an integer number (4118112).

Almost surely, 2^47555457 is an apocalyptic number.

It is an amenable number.

47555457 is a deficient number, since it is larger than the sum of its proper divisors (18334335).

47555457 is a wasteful number, since it uses less digits than its factorization.

47555457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448.

The product of its digits is 490000, while the sum is 42.

The square root of 47555457 is about 6896.0464760615. The cubic root of 47555457 is about 362.2987090157.

The spelling of 47555457 in words is "forty-seven million, five hundred fifty-five thousand, four hundred fifty-seven".