49090521 has 16 divisors (see below), whose sum is σ = 66959360. Its totient is φ = 31983120.

The previous prime is 49090519. The next prime is 49090523. The reversal of 49090521 is 12509094.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49090519) and next prime (49090523).

It is not a de Polignac number, because 49090521 - 2¹ = 49090519 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49090523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23406 + ... + 25416.

It is an arithmetic number, because the mean of its divisors is an integer number (4184960).

Almost surely, 2^49090521 is an apocalyptic number.

It is an amenable number.

49090521 is a deficient number, since it is larger than the sum of its proper divisors (17868839).

49090521 is a wasteful number, since it uses less digits than its factorization.

49090521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 49090521 is about 7006.4628022990. The cubic root of 49090521 is about 366.1557684477.

The spelling of 49090521 in words is "forty-nine million, ninety thousand, five hundred twenty-one".