55811701 has 16 divisors (see below), whose sum is σ = 63721728. Its totient is φ = 48428800.

The previous prime is 55811669. The next prime is 55811711. The reversal of 55811701 is 10711855.

It is not a de Polignac number, because 55811701 - 2⁵ = 55811669 is a prime.

It is a super-2 number, since 2×55811701² = 6229891937026802, which contains 22 as substring.

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 55811701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55811711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19881 + ... + 22513.

It is an arithmetic number, because the mean of its divisors is an integer number (3982608).

Almost surely, 2^55811701 is an apocalyptic number.

It is an amenable number.

55811701 is a deficient number, since it is larger than the sum of its proper divisors (7910027).

55811701 is a wasteful number, since it uses less digits than its factorization.

55811701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 55811701 is about 7470.7229235195. The cubic root of 55811701 is about 382.1569418996.

The spelling of 55811701 in words is "fifty-five million, eight hundred eleven thousand, seven hundred one".