49138755 has 32 divisors (see below), whose sum is σ = 83939328. Its totient is φ = 24460800.

The previous prime is 49138753. The next prime is 49138759. The reversal of 49138755 is 55783194.

It is not a de Polignac number, because 49138755 - 2¹ = 49138753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49138753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32670 + ... + 34140.

It is an arithmetic number, because the mean of its divisors is an integer number (2623104).

Almost surely, 2^49138755 is an apocalyptic number.

49138755 is a deficient number, since it is larger than the sum of its proper divisors (34800573).

49138755 is a wasteful number, since it uses less digits than its factorization.

49138755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627.

The product of its digits is 151200, while the sum is 42.

The square root of 49138755 is about 7009.9040649641. The cubic root of 49138755 is about 366.2756515793.

The spelling of 49138755 in words is "forty-nine million, one hundred thirty-eight thousand, seven hundred fifty-five".