49245869 has 4 divisors (see below), whose sum is σ = 49264380. Its totient is φ = 49227360.

The previous prime is 49245817. The next prime is 49245877. The reversal of 49245869 is 96854294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96854294 = 2 ⋅48427147.

It can be written as a sum of positive squares in 2 ways, for example, as 34515625 + 14730244 = 5875^2 + 3838^2 .

It is a cyclic number.

It is not a de Polignac number, because 49245869 - 2¹⁶ = 49180333 is a prime.

It is a super-2 number, since 2×49245869² = 4850311227130322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49245269) 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, 4424 + ... + 10865.

It is an arithmetic number, because the mean of its divisors is an integer number (12316095).

Almost surely, 2^49245869 is an apocalyptic number.

It is an amenable number.

49245869 is a deficient number, since it is larger than the sum of its proper divisors (18511).

49245869 is a wasteful number, since it uses less digits than its factorization.

49245869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18510.

The product of its digits is 622080, while the sum is 47.

The square root of 49245869 is about 7017.5400960736. The cubic root of 49245869 is about 366.5415976564.

The spelling of 49245869 in words is "forty-nine million, two hundred forty-five thousand, eight hundred sixty-nine".