49021521 has 8 divisors (see below), whose sum is σ = 65599104. Its totient is φ = 32562480.

The previous prime is 49021519. The next prime is 49021541. The reversal of 49021521 is 12512094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49021521 - 2¹ = 49021519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49021491 and 49021500.

It is not an unprimeable number, because it can be changed into a prime (49021541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28665 + ... + 30326.

It is an arithmetic number, because the mean of its divisors is an integer number (8199888).

Almost surely, 2^49021521 is an apocalyptic number.

It is an amenable number.

49021521 is a deficient number, since it is larger than the sum of its proper divisors (16577583).

49021521 is a wasteful number, since it uses less digits than its factorization.

49021521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59271.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 49021521 is about 7001.5370455351. The cubic root of 49021521 is about 365.9841358945.

The spelling of 49021521 in words is "forty-nine million, twenty-one thousand, five hundred twenty-one".