55777754 has 4 divisors (see below), whose sum is σ = 83666634. Its totient is φ = 27888876.

The previous prime is 55777741. The next prime is 55777789. The reversal of 55777754 is 45777755.

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., 55726225 + 51529 = 7465^2 + 227^2 .

It is a super-2 number, since 2×55777754² = 6222315682569032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55777699 and 55777708.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13944437 + ... + 13944440.

Almost surely, 2^55777754 is an apocalyptic number.

55777754 is a deficient number, since it is larger than the sum of its proper divisors (27888880).

55777754 is a wasteful number, since it uses less digits than its factorization.

55777754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27888879.

The product of its digits is 1200500, while the sum is 47.

The square root of 55777754 is about 7468.4505755880. The cubic root of 55777754 is about 382.0794449314.

Subtracting from 55777754 its reverse (45777755), we obtain a palindrome (9999999).

It can be divided in two parts, 5577 and 7754, that added together give a palindrome (13331).

The spelling of 55777754 in words is "fifty-five million, seven hundred seventy-seven thousand, seven hundred fifty-four".