55740288442 has 4 divisors (see below), whose sum is σ = 83610432666. Its totient is φ = 27870144220.

The previous prime is 55740288431. The next prime is 55740288473. The reversal of 55740288442 is 24488204755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33309535081 + 22430753361 = 182509^2 + 149769^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13935072109 + ... + 13935072112.

Almost surely, 2^55740288442 is an apocalyptic number.

55740288442 is a deficient number, since it is larger than the sum of its proper divisors (27870144224).

55740288442 is a wasteful number, since it uses less digits than its factorization.

55740288442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27870144223.

The product of its (nonzero) digits is 2867200, while the sum is 49.

The spelling of 55740288442 in words is "fifty-five billion, seven hundred forty million, two hundred eighty-eight thousand, four hundred forty-two".