49529565 has 24 divisors (see below), whose sum is σ = 86021208. Its totient is φ = 26363520.

The previous prime is 49529563. The next prime is 49529567. The reversal of 49529565 is 56592594.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49529563) and next prime (49529567).

It can be written as a sum of positive squares in 4 ways, for example, as 4088484 + 45441081 = 2022^2 + 6741^2 .

It is not a de Polignac number, because 49529565 - 2¹ = 49529563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 49529565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49529563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35175 + ... + 36555.

It is an arithmetic number, because the mean of its divisors is an integer number (3584217).

Almost surely, 2^49529565 is an apocalyptic number.

49529565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49529565 is a deficient number, since it is larger than the sum of its proper divisors (36491643).

49529565 is a wasteful number, since it uses less digits than its factorization.

49529565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2186 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 49529565 is about 7037.7244191571. The cubic root of 49529565 is about 367.2441089665.

It can be divided in two parts, 4 and 9529565, that added together give a square (9529569 = 3087²).

The spelling of 49529565 in words is "forty-nine million, five hundred twenty-nine thousand, five hundred sixty-five".