61525673 has 4 divisors (see below), whose sum is σ = 67118928. Its totient is φ = 55932420.

The previous prime is 61525649. The next prime is 61525687. The reversal of 61525673 is 37652516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61525673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61525603) 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, 2796611 + ... + 2796632.

It is an arithmetic number, because the mean of its divisors is an integer number (16779732).

Almost surely, 2^61525673 is an apocalyptic number.

It is an amenable number.

61525673 is a deficient number, since it is larger than the sum of its proper divisors (5593255).

61525673 is a wasteful number, since it uses less digits than its factorization.

61525673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593254.

The product of its digits is 37800, while the sum is 35.

The square root of 61525673 is about 7843.8302505855. The cubic root of 61525673 is about 394.7772562464. Note that the first 3 decimals are identical.

The spelling of 61525673 in words is "sixty-one million, five hundred twenty-five thousand, six hundred seventy-three".