49003091 has 4 divisors (see below), whose sum is σ = 49019952. Its totient is φ = 48986232.

The previous prime is 49003081. The next prime is 49003103. The reversal of 49003091 is 19030094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49003091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49003091.

It is not an unprimeable number, because it can be changed into a prime (49003001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (12254988).

Almost surely, 2^49003091 is an apocalyptic number.

49003091 is a deficient number, since it is larger than the sum of its proper divisors (16861).

49003091 is a wasteful number, since it uses less digits than its factorization.

49003091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16860.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 49003091 is about 7000.2207822325. The cubic root of 49003091 is about 365.9382653398.

The spelling of 49003091 in words is "forty-nine million, three thousand, ninety-one".