49102905 has 8 divisors (see below), whose sum is σ = 78564672. Its totient is φ = 26188208.

The previous prime is 49102903. The next prime is 49102909. The reversal of 49102905 is 50920194.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49102905 - 2¹ = 49102903 is a prime.

It is a super-2 number, since 2×49102905² = 4822190558878050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49102903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636749 + ... + 1636778.

It is an arithmetic number, because the mean of its divisors is an integer number (9820584).

Almost surely, 2^49102905 is an apocalyptic number.

It is an amenable number.

49102905 is a deficient number, since it is larger than the sum of its proper divisors (29461767).

49102905 is a wasteful number, since it uses less digits than its factorization.

49102905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273535.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 49102905 is about 7007.3465020648. The cubic root of 49102905 is about 366.1865557341.

The spelling of 49102905 in words is "forty-nine million, one hundred two thousand, nine hundred five".