4952812581 has 16 divisors (see below), whose sum is σ = 7365409920. Its totient is φ = 3289315680.

The previous prime is 4952812561. The next prime is 4952812583. The reversal of 4952812581 is 1852182594.

4952812581 is a `hidden beast` number, since 4 + 9 + 52 + 8 + 12 + 581 = 666.

It is not a de Polignac number, because 4952812581 - 2¹⁰ = 4952811557 is a prime.

It is a super-2 number, since 2×4952812581² = 49060704925023763122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4952812583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341640 + ... + 355841.

It is an arithmetic number, because the mean of its divisors is an integer number (460338120).

Almost surely, 2^4952812581 is an apocalyptic number.

It is an amenable number.

4952812581 is a deficient number, since it is larger than the sum of its proper divisors (2412597339).

4952812581 is a wasteful number, since it uses less digits than its factorization.

4952812581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697753 (or 697747 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 4952812581 is about 70376.2217016515. The cubic root of 4952812581 is about 1704.5796449706.

The spelling of 4952812581 in words is "four billion, nine hundred fifty-two million, eight hundred twelve thousand, five hundred eighty-one".