55152549 has 8 divisors (see below), whose sum is σ = 81707520. Its totient is φ = 36768348.

The previous prime is 55152547. The next prime is 55152563. The reversal of 55152549 is 94525155.

55152549 is a `hidden beast` number, since 551 + 52 + 54 + 9 = 666.

It is not a de Polignac number, because 55152549 - 2¹ = 55152547 is a prime.

It is a super-2 number, since 2×55152549² = 6083607322394802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55152547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021317 + ... + 1021370.

It is an arithmetic number, because the mean of its divisors is an integer number (10213440).

Almost surely, 2^55152549 is an apocalyptic number.

It is an amenable number.

55152549 is a deficient number, since it is larger than the sum of its proper divisors (26554971).

55152549 is a wasteful number, since it uses less digits than its factorization.

55152549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042696 (or 2042690 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 55152549 is about 7426.4762168878. The cubic root of 55152549 is about 380.6465194463.

The spelling of 55152549 in words is "fifty-five million, one hundred fifty-two thousand, five hundred forty-nine".