61522841 has 4 divisors (see below), whose sum is σ = 61557300. Its totient is φ = 61488384.

The previous prime is 61522807. The next prime is 61522843. The reversal of 61522841 is 14822516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48706441 + 12816400 = 6979^2 + 3580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61522841 is a prime.

It is a super-2 number, since 2×61522841² = 7570119929422562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61522843) 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, 14396 + ... + 18173.

It is an arithmetic number, because the mean of its divisors is an integer number (15389325).

Almost surely, 2^61522841 is an apocalyptic number.

It is an amenable number.

61522841 is a deficient number, since it is larger than the sum of its proper divisors (34459).

61522841 is a wasteful number, since it uses less digits than its factorization.

61522841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34458.

The product of its digits is 3840, while the sum is 29.

The square root of 61522841 is about 7843.6497244586. The cubic root of 61522841 is about 394.7711990116.

The spelling of 61522841 in words is "sixty-one million, five hundred twenty-two thousand, eight hundred forty-one".