55850001 has 4 divisors (see below), whose sum is σ = 74466672. Its totient is φ = 37233332.

The previous prime is 55849993. The next prime is 55850017. The reversal of 55850001 is 10005855.

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 55850001 - 2³ = 55849993 is a prime.

It is a super-2 number, since 2×55850001² = 6238445223400002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55850021) 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, 9308331 + ... + 9308336.

It is an arithmetic number, because the mean of its divisors is an integer number (18616668).

Almost surely, 2^55850001 is an apocalyptic number.

It is an amenable number.

55850001 is a deficient number, since it is larger than the sum of its proper divisors (18616671).

55850001 is a wasteful number, since it uses less digits than its factorization.

55850001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18616670.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 55850001 is about 7473.2858235183. The cubic root of 55850001 is about 382.2443385317.

Adding to 55850001 its reverse (10005855), we get a palindrome (65855856).

The spelling of 55850001 in words is "fifty-five million, eight hundred fifty thousand, one".