49009995 has 16 divisors (see below), whose sum is σ = 87129120. Its totient is φ = 26138592.

The previous prime is 49009993. The next prime is 49009999. The reversal of 49009995 is 59990094.

It is a happy number.

It is not a de Polignac number, because 49009995 - 2¹ = 49009993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 49009995.

It is not an unprimeable number, because it can be changed into a prime (49009993) 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, 181384 + ... + 181653.

It is an arithmetic number, because the mean of its divisors is an integer number (5445570).

Almost surely, 2^49009995 is an apocalyptic number.

49009995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49009995 is a deficient number, since it is larger than the sum of its proper divisors (38119125).

49009995 is a wasteful number, since it uses less digits than its factorization.

49009995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363051 (or 363045 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 49009995 is about 7000.7138921684. The cubic root of 49009995 is about 365.9554501003.

Subtracting from 49009995 its sum of digits (45), we obtain a triangular number (49009950 = T₉₉₀₀).

The spelling of 49009995 in words is "forty-nine million, nine thousand, nine hundred ninety-five".