61058399 has 16 divisors (see below), whose sum is σ = 65995968. Its totient is φ = 56339712.

The previous prime is 61058363. The next prime is 61058401. The reversal of 61058399 is 99385016.

It is a cyclic number.

It is not a de Polignac number, because 61058399 - 2²⁴ = 44281183 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 (61058329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133379 + ... + 133835.

It is an arithmetic number, because the mean of its divisors is an integer number (4124748).

Almost surely, 2^61058399 is an apocalyptic number.

61058399 is a deficient number, since it is larger than the sum of its proper divisors (4937569).

61058399 is a wasteful number, since it uses less digits than its factorization.

61058399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 61058399 is about 7813.9873944101. The cubic root of 61058399 is about 393.7752998273.

The spelling of 61058399 in words is "sixty-one million, fifty-eight thousand, three hundred ninety-nine".