61325515 has 8 divisors (see below), whose sum is σ = 73998288. Its totient is φ = 48788640.

The previous prime is 61325507. The next prime is 61325519. The reversal of 61325515 is 51552316.

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

It is not a de Polignac number, because 61325515 - 2³ = 61325507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61325519) 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, 32977 + ... + 34786.

It is an arithmetic number, because the mean of its divisors is an integer number (9249786).

Almost surely, 2^61325515 is an apocalyptic number.

61325515 is a deficient number, since it is larger than the sum of its proper divisors (12672773).

61325515 is a wasteful number, since it uses less digits than its factorization.

61325515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67949.

The product of its digits is 4500, while the sum is 28.

The square root of 61325515 is about 7831.0609115241. The cubic root of 61325515 is about 394.3486889753.

The spelling of 61325515 in words is "sixty-one million, three hundred twenty-five thousand, five hundred fifteen".