61325599 has 4 divisors (see below), whose sum is σ = 61356736. Its totient is φ = 61294464.

The previous prime is 61325587. The next prime is 61325609. The reversal of 61325599 is 99552316.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61325599 - 2⁹ = 61325087 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 12399 + ... + 16624.

It is an arithmetic number, because the mean of its divisors is an integer number (15339184).

Almost surely, 2^61325599 is an apocalyptic number.

61325599 is a deficient number, since it is larger than the sum of its proper divisors (31137).

61325599 is a wasteful number, since it uses less digits than its factorization.

61325599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31136.

The product of its digits is 72900, while the sum is 40.

The square root of 61325599 is about 7831.0662747802. The cubic root of 61325599 is about 394.3488690269.

The spelling of 61325599 in words is "sixty-one million, three hundred twenty-five thousand, five hundred ninety-nine".