55801698 has 16 divisors (see below), whose sum is σ = 114620160. Its totient is φ = 18097776.

The previous prime is 55801679. The next prime is 55801699. The reversal of 55801698 is 89610855.

It is a super-2 number, since 2×55801698² = 6227658999366408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55801699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125458 + ... + 125901.

It is an arithmetic number, because the mean of its divisors is an integer number (7163760).

Almost surely, 2^55801698 is an apocalyptic number.

55801698 is an abundant number, since it is smaller than the sum of its proper divisors (58818462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55801698 is a wasteful number, since it uses less digits than its factorization.

55801698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251401.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 55801698 is about 7470.0534134637. The cubic root of 55801698 is about 382.1341095053.

The spelling of 55801698 in words is "fifty-five million, eight hundred one thousand, six hundred ninety-eight".