55951801 has 6 divisors (see below), whose sum is σ = 58490810. Its totient is φ = 53518608.

The previous prime is 55951793. The next prime is 55951849. The reversal of 55951801 is 10815955.

It can be written as a sum of positive squares in only one way, i.e., 55875625 + 76176 = 7475^2 + 276^2 .

It is not a de Polignac number, because 55951801 - 2³ = 55951793 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 (55951871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52356 + ... + 53413.

Almost surely, 2^55951801 is an apocalyptic number.

It is an amenable number.

55951801 is a deficient number, since it is larger than the sum of its proper divisors (2539009).

55951801 is a wasteful number, since it uses less digits than its factorization.

55951801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105815 (or 105792 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 55951801 is about 7480.0936491464. The cubic root of 55951801 is about 382.4764415126.

It can be divided in two parts, 5595 and 1801, that added together give a square (7396 = 86²).

The spelling of 55951801 in words is "fifty-five million, nine hundred fifty-one thousand, eight hundred one".