61675521 has 8 divisors (see below), whose sum is σ = 84239904. Its totient is φ = 40114080.

The previous prime is 61675519. The next prime is 61675531. The reversal of 61675521 is 12557616.

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

It is not a de Polignac number, because 61675521 - 2¹ = 61675519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61675531) 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, 250591 + ... + 250836.

It is an arithmetic number, because the mean of its divisors is an integer number (10529988).

Almost surely, 2^61675521 is an apocalyptic number.

It is an amenable number.

61675521 is a deficient number, since it is larger than the sum of its proper divisors (22564383).

61675521 is a wasteful number, since it uses less digits than its factorization.

61675521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501471.

The product of its digits is 12600, while the sum is 33.

The square root of 61675521 is about 7853.3764076351. The cubic root of 61675521 is about 395.0974944943.

The spelling of 61675521 in words is "sixty-one million, six hundred seventy-five thousand, five hundred twenty-one".