49581123 has 16 divisors (see below), whose sum is σ = 69603840. Its totient is φ = 31332224.

The previous prime is 49581101. The next prime is 49581179. The reversal of 49581123 is 32118594.

It is a cyclic number.

It is not a de Polignac number, because 49581123 - 2²⁴ = 32803907 is a prime.

It is a super-2 number, since 2×49581123² = 4916575515882258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49581223) 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, 4618 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (4350240).

Almost surely, 2^49581123 is an apocalyptic number.

49581123 is a deficient number, since it is larger than the sum of its proper divisors (20022717).

49581123 is a wasteful number, since it uses less digits than its factorization.

49581123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498.

The product of its digits is 8640, while the sum is 33.

The square root of 49581123 is about 7041.3864401835. The cubic root of 49581123 is about 367.3714928541.

It can be divided in two parts, 495 and 81123, that added together give a palindrome (81618).

The spelling of 49581123 in words is "forty-nine million, five hundred eighty-one thousand, one hundred twenty-three".