49155869 has 24 divisors (see below), whose sum is σ = 61860960. Its totient is φ = 38810016.

The previous prime is 49155859. The next prime is 49155889. The reversal of 49155869 is 96855194.

It is a happy number.

It is not a de Polignac number, because 49155869 - 2¹⁶ = 49090333 is a prime.

It is a super-2 number, since 2×49155869² = 4832598914290322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49155809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33734 + ... + 35160.

It is an arithmetic number, because the mean of its divisors is an integer number (2577540).

Almost surely, 2^49155869 is an apocalyptic number.

49155869 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49155869 is a deficient number, since it is larger than the sum of its proper divisors (12705091).

49155869 is a wasteful number, since it uses less digits than its factorization.

49155869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497 (or 1490 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 49155869 is about 7011.1246601383. The cubic root of 49155869 is about 366.3181686917.

The spelling of 49155869 in words is "forty-nine million, one hundred fifty-five thousand, eight hundred sixty-nine".