49561265 has 16 divisors (see below), whose sum is σ = 65415168. Its totient is φ = 35818176.

The previous prime is 49561249. The next prime is 49561279. The reversal of 49561265 is 56216594.

49561265 = 841² + 842² + ... + 905².

It is a cyclic number.

It is not a de Polignac number, because 49561265 - 2⁴ = 49561249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5057 + ... + 11166.

It is an arithmetic number, because the mean of its divisors is an integer number (4088448).

Almost surely, 2^49561265 is an apocalyptic number.

It is an amenable number.

49561265 is a deficient number, since it is larger than the sum of its proper divisors (15853903).

49561265 is a wasteful number, since it uses less digits than its factorization.

49561265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16288.

The product of its digits is 64800, while the sum is 38.

The square root of 49561265 is about 7039.9762073462. The cubic root of 49561265 is about 367.3224403328.

The spelling of 49561265 in words is "forty-nine million, five hundred sixty-one thousand, two hundred sixty-five".