51258601 has 4 divisors (see below), whose sum is σ = 51346512. Its totient is φ = 51170692.

The previous prime is 51258563. The next prime is 51258607. The reversal of 51258601 is 10685215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51258601 - 2¹¹ = 51256553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51258601.

It is not an unprimeable number, because it can be changed into a prime (51258607) 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, 43075 + ... + 44248.

It is an arithmetic number, because the mean of its divisors is an integer number (12836628).

Almost surely, 2^51258601 is an apocalyptic number.

It is an amenable number.

51258601 is a deficient number, since it is larger than the sum of its proper divisors (87911).

51258601 is an equidigital number, since it uses as much as digits as its factorization.

51258601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87910.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51258601 is about 7159.5112263338. The cubic root of 51258601 is about 371.4687202515.

The spelling of 51258601 in words is "fifty-one million, two hundred fifty-eight thousand, six hundred one".