55742536 has 16 divisors (see below), whose sum is σ = 105185340. Its totient is φ = 27693120.

The previous prime is 55742513. The next prime is 55742549. The reversal of 55742536 is 63524755.

It can be written as a sum of positive squares in 2 ways, for example, as 54316900 + 1425636 = 7370^2 + 1194^2 .

It is a super-2 number, since 2×55742536² = 6214460639422592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55742495 and 55742504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20935 + ... + 23446.

Almost surely, 2^55742536 is an apocalyptic number.

It is an amenable number.

55742536 is a deficient number, since it is larger than the sum of its proper divisors (49442804).

55742536 is a wasteful number, since it uses less digits than its factorization.

55742536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44544 (or 44540 counting only the distinct ones).

The product of its digits is 126000, while the sum is 37.

The square root of 55742536 is about 7466.0924183940. The cubic root of 55742536 is about 381.9990131824. Note that the first 3 decimals are identical.

The spelling of 55742536 in words is "fifty-five million, seven hundred forty-two thousand, five hundred thirty-six".