55706651 has 64 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 36288000.

The previous prime is 55706641. The next prime is 55706663. The reversal of 55706651 is 15660755.

It is not a de Polignac number, because 55706651 - 2⁶ = 55706587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55706641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 551501 + ... + 551601.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 2^55706651 is an apocalyptic number.

55706651 is a deficient number, since it is larger than the sum of its proper divisors (26546149).

55706651 is a wasteful number, since it uses less digits than its factorization.

55706651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55706651 is about 7463.6888332781. The cubic root of 55706651 is about 381.9170232683.

It can be divided in two parts, 5570 and 6651, that added together give a palindrome (12221).

The spelling of 55706651 in words is "fifty-five million, seven hundred six thousand, six hundred fifty-one".