50556401 has 4 divisors (see below), whose sum is σ = 57778752. Its totient is φ = 43334052.

The previous prime is 50556371. The next prime is 50556421. The reversal of 50556401 is 10465505.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10465505 = 5 ⋅2093101.

It is a cyclic number.

It is not a de Polignac number, because 50556401 - 2¹⁰ = 50555377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50556421) 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, 3611165 + ... + 3611178.

It is an arithmetic number, because the mean of its divisors is an integer number (14444688).

Almost surely, 2^50556401 is an apocalyptic number.

It is an amenable number.

50556401 is a deficient number, since it is larger than the sum of its proper divisors (7222351).

50556401 is an equidigital number, since it uses as much as digits as its factorization.

50556401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222350.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 50556401 is about 7110.3024548890. The cubic root of 50556401 is about 369.7646445769.

The spelling of 50556401 in words is "fifty million, five hundred fifty-six thousand, four hundred one".