47981485 has 4 divisors (see below), whose sum is σ = 57577788. Its totient is φ = 38385184.

The previous prime is 47981477. The next prime is 47981539. The reversal of 47981485 is 58418974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58418974 = 2 ⋅29209487.

It can be written as a sum of positive squares in 2 ways, for example, as 31877316 + 16104169 = 5646^2 + 4013^2 .

It is a cyclic number.

It is not a de Polignac number, because 47981485 - 2³ = 47981477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4798144 + ... + 4798153.

It is an arithmetic number, because the mean of its divisors is an integer number (14394447).

Almost surely, 2^47981485 is an apocalyptic number.

It is an amenable number.

47981485 is a deficient number, since it is larger than the sum of its proper divisors (9596303).

47981485 is an equidigital number, since it uses as much as digits as its factorization.

47981485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596302.

The product of its digits is 322560, while the sum is 46.

The square root of 47981485 is about 6926.8668963681. The cubic root of 47981485 is about 363.3773847963.

The spelling of 47981485 in words is "forty-seven million, nine hundred eighty-one thousand, four hundred eighty-five".