2387255481 has 48 divisors (see below), whose sum is σ = 3956045184. Its totient is φ = 1374193152.

The previous prime is 2387255473. The next prime is 2387255483. The reversal of 2387255481 is 1845527832.

2387255481 is a `hidden beast` number, since 2 + 3 + 87 + 25 + 548 + 1 = 666.

It is not a de Polignac number, because 2387255481 - 2³ = 2387255473 is a prime.

It is a super-2 number, since 2×2387255481² = 11397977463129082722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2387255483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328570 + ... + 335756.

It is an arithmetic number, because the mean of its divisors is an integer number (82417608).

Almost surely, 2^2387255481 is an apocalyptic number.

It is an amenable number.

2387255481 is a deficient number, since it is larger than the sum of its proper divisors (1568789703).

2387255481 is a wasteful number, since it uses less digits than its factorization.

2387255481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390 (or 7387 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 2387255481 is about 48859.5485140827. The cubic root of 2387255481 is about 1336.4918037171.

The spelling of 2387255481 in words is "two billion, three hundred eighty-seven million, two hundred fifty-five thousand, four hundred eighty-one".