49072155 has 48 divisors (see below), whose sum is σ = 90908160. Its totient is φ = 22524480.

The previous prime is 49072139. The next prime is 49072157. The reversal of 49072155 is 55127094.

49072155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49072155 - 2⁴ = 49072139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (49072157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33774 + ... + 35196.

It is an arithmetic number, because the mean of its divisors is an integer number (1893920).

Almost surely, 2^49072155 is an apocalyptic number.

49072155 is a deficient number, since it is larger than the sum of its proper divisors (41836005).

49072155 is a wasteful number, since it uses less digits than its factorization.

49072155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 49072155 is about 7005.1520326114. The cubic root of 49072155 is about 366.1101000545.

The spelling of 49072155 in words is "forty-nine million, seventy-two thousand, one hundred fifty-five".