55740311 has 8 divisors (see below), whose sum is σ = 61366800. Its totient is φ = 50207040.

The previous prime is 55740287. The next prime is 55740337. The reversal of 55740311 is 11304755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55740311 - 2¹⁸ = 55478167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55740011) 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, 22046 + ... + 24443.

It is an arithmetic number, because the mean of its divisors is an integer number (7670850).

Almost surely, 2^55740311 is an apocalyptic number.

55740311 is a deficient number, since it is larger than the sum of its proper divisors (5626489).

55740311 is a wasteful number, since it uses less digits than its factorization.

55740311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46609.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55740311 is about 7465.9434099114. The cubic root of 55740311 is about 381.9939305341.

Subtracting from 55740311 its reverse (11304755), we obtain a square (44435556 = 6666²).

The spelling of 55740311 in words is "fifty-five million, seven hundred forty thousand, three hundred eleven".