55261662765 has 64 divisors (see below), whose sum is σ = 94321262592. Its totient is φ = 27532108800.

The previous prime is 55261662763. The next prime is 55261662817. The reversal of 55261662765 is 56726616255.

It is not a de Polignac number, because 55261662765 - 2¹ = 55261662763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55261662763) 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, 23188764 + ... + 23191146.

It is an arithmetic number, because the mean of its divisors is an integer number (1473769728).

Almost surely, 2^55261662765 is an apocalyptic number.

It is an amenable number.

55261662765 is a deficient number, since it is larger than the sum of its proper divisors (39059599827).

55261662765 is a wasteful number, since it uses less digits than its factorization.

55261662765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050.

The product of its digits is 4536000, while the sum is 51.

The spelling of 55261662765 in words is "fifty-five billion, two hundred sixty-one million, six hundred sixty-two thousand, seven hundred sixty-five".