55542152 has 8 divisors (see below), whose sum is σ = 104141550. Its totient is φ = 27771072.

The previous prime is 55542139. The next prime is 55542161. The reversal of 55542152 is 25124555.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 17522596 = 6166^2 + 4186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55542152² = 6169861297582208, which contains 22 as substring.

It is an unprimeable number.

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, 3471377 + ... + 3471392.

Almost surely, 2^55542152 is an apocalyptic number.

It is an amenable number.

55542152 is a deficient number, since it is larger than the sum of its proper divisors (48599398).

55542152 is a wasteful number, since it uses less digits than its factorization.

55542152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942775 (or 6942771 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 55542152 is about 7452.6607329195. The cubic root of 55542152 is about 381.5407252344.

The spelling of 55542152 in words is "fifty-five million, five hundred forty-two thousand, one hundred fifty-two".