55787626 has 4 divisors (see below), whose sum is σ = 83681442. Its totient is φ = 27893812.

The previous prime is 55787623. The next prime is 55787647. The reversal of 55787626 is 62678755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62678755 = 5 ⋅12535751.

It can be written as a sum of positive squares in only one way, i.e., 53275401 + 2512225 = 7299^2 + 1585^2 .

It is a super-2 number, since 2×55787626² = 6224518429431752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55787621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13946905 + ... + 13946908.

Almost surely, 2^55787626 is an apocalyptic number.

55787626 is a deficient number, since it is larger than the sum of its proper divisors (27893816).

55787626 is a wasteful number, since it uses less digits than its factorization.

55787626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27893815.

The product of its digits is 705600, while the sum is 46.

The square root of 55787626 is about 7469.1114598726. Note that the first 3 decimals coincide. The cubic root of 55787626 is about 382.1019847764.

The spelling of 55787626 in words is "fifty-five million, seven hundred eighty-seven thousand, six hundred twenty-six".