53649901 has 4 divisors (see below), whose sum is σ = 56473600. Its totient is φ = 50826204.

The previous prime is 53649899. The next prime is 53649917. The reversal of 53649901 is 10994635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53649901 - 2¹ = 53649899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53649941) 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, 1411821 + ... + 1411858.

It is an arithmetic number, because the mean of its divisors is an integer number (14118400).

Almost surely, 2^53649901 is an apocalyptic number.

It is an amenable number.

53649901 is a deficient number, since it is larger than the sum of its proper divisors (2823699).

53649901 is a wasteful number, since it uses less digits than its factorization.

53649901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823698.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 53649901 is about 7324.6092728554. The cubic root of 53649901 is about 377.1576968108.

The spelling of 53649901 in words is "fifty-three million, six hundred forty-nine thousand, nine hundred one".