58251661 has 4 divisors (see below), whose sum is σ = 62732572. Its totient is φ = 53770752.

The previous prime is 58251647. The next prime is 58251667. The reversal of 58251661 is 16615285.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6325225 + 51926436 = 2515^2 + 7206^2 .

It is a cyclic number.

It is not a de Polignac number, because 58251661 - 2⁷ = 58251533 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 (58251667) 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, 2240436 + ... + 2240461.

It is an arithmetic number, because the mean of its divisors is an integer number (15683143).

Almost surely, 2^58251661 is an apocalyptic number.

It is an amenable number.

58251661 is a deficient number, since it is larger than the sum of its proper divisors (4480911).

58251661 is a wasteful number, since it uses less digits than its factorization.

58251661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480910.

The product of its digits is 14400, while the sum is 34.

The square root of 58251661 is about 7632.2775761892. The cubic root of 58251661 is about 387.6467118413.

The spelling of 58251661 in words is "fifty-eight million, two hundred fifty-one thousand, six hundred sixty-one".