47788455 has 32 divisors (see below), whose sum is σ = 89832960. Its totient is φ = 21386880.

The previous prime is 47788451. The next prime is 47788459. The reversal of 47788455 is 55488774.

It is an interprime number because it is at equal distance from previous prime (47788451) and next prime (47788459).

It is not a de Polignac number, because 47788455 - 2² = 47788451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47788451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8995 + ... + 13284.

It is an arithmetic number, because the mean of its divisors is an integer number (2807280).

Almost surely, 2^47788455 is an apocalyptic number.

47788455 is a deficient number, since it is larger than the sum of its proper divisors (42044505).

47788455 is a wasteful number, since it uses less digits than its factorization.

47788455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22311.

The product of its digits is 1254400, while the sum is 48.

The square root of 47788455 is about 6912.9194266967. The cubic root of 47788455 is about 362.8894395744.

The spelling of 47788455 in words is "forty-seven million, seven hundred eighty-eight thousand, four hundred fifty-five".