49165651 has 4 divisors (see below), whose sum is σ = 51303312. Its totient is φ = 47027992.

The previous prime is 49165621. The next prime is 49165657. The reversal of 49165651 is 15656194.

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

It is a cyclic number.

It is not a de Polignac number, because 49165651 - 2¹⁹ = 48641363 is a prime.

It is a super-2 number, since 2×49165651² = 4834522476507602, which contains 22 as substring.

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 49165651.

It is not an unprimeable number, because it can be changed into a prime (49165657) 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, 1068796 + ... + 1068841.

It is an arithmetic number, because the mean of its divisors is an integer number (12825828).

Almost surely, 2^49165651 is an apocalyptic number.

49165651 is a deficient number, since it is larger than the sum of its proper divisors (2137661).

49165651 is a wasteful number, since it uses less digits than its factorization.

49165651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137660.

The product of its digits is 32400, while the sum is 37.

The square root of 49165651 is about 7011.8222310609. The cubic root of 49165651 is about 366.3424661407.

The spelling of 49165651 in words is "forty-nine million, one hundred sixty-five thousand, six hundred fifty-one".