61005525 has 24 divisors (see below), whose sum is σ = 115272384. Its totient is φ = 27888000.

The previous prime is 61005487. The next prime is 61005541. The reversal of 61005525 is 52550016.

It is not a de Polignac number, because 61005525 - 2⁷ = 61005397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61005495 and 61005504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57576 + ... + 58625.

It is an arithmetic number, because the mean of its divisors is an integer number (4803016).

Almost surely, 2^61005525 is an apocalyptic number.

It is an amenable number.

61005525 is a deficient number, since it is larger than the sum of its proper divisors (54266859).

61005525 is a wasteful number, since it uses less digits than its factorization.

61005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116221 (or 116216 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 61005525 is about 7810.6033697788. The cubic root of 61005525 is about 393.6616027312.

The spelling of 61005525 in words is "sixty-one million, five thousand, five hundred twenty-five".