49903553 has 4 divisors (see below), whose sum is σ = 57032640. Its totient is φ = 42774468.

The previous prime is 49903547. The next prime is 49903561. The reversal of 49903553 is 35530994.

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 49903553 - 2¹² = 49899457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49903853) 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, 3564533 + ... + 3564546.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2^49903553 is an apocalyptic number.

It is an amenable number.

49903553 is a deficient number, since it is larger than the sum of its proper divisors (7129087).

49903553 is an equidigital number, since it uses as much as digits as its factorization.

49903553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129086.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 49903553 is about 7064.2446871552. The cubic root of 49903553 is about 368.1661215369.

The spelling of 49903553 in words is "forty-nine million, nine hundred three thousand, five hundred fifty-three".