58661945 has 4 divisors (see below), whose sum is σ = 70394340. Its totient is φ = 46929552.

The previous prime is 58661929. The next prime is 58661957. The reversal of 58661945 is 54916685.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54916685 = 5 ⋅10983337.

It can be written as a sum of positive squares in 2 ways, for example, as 46348864 + 12313081 = 6808^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 58661945 - 2⁴ = 58661929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 58661896 and 58661905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5866190 + ... + 5866199.

It is an arithmetic number, because the mean of its divisors is an integer number (17598585).

Almost surely, 2^58661945 is an apocalyptic number.

It is an amenable number.

58661945 is a deficient number, since it is larger than the sum of its proper divisors (11732395).

58661945 is a wasteful number, since it uses less digits than its factorization.

58661945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732394.

The product of its digits is 259200, while the sum is 44.

The square root of 58661945 is about 7659.1086295991. The cubic root of 58661945 is about 388.5546876477.

The spelling of 58661945 in words is "fifty-eight million, six hundred sixty-one thousand, nine hundred forty-five".