55149377 has 16 divisors (see below), whose sum is σ = 62249472. Its totient is φ = 48576000.

The previous prime is 55149371. The next prime is 55149379. The reversal of 55149377 is 77394155.

It is not a de Polignac number, because 55149377 - 2¹⁴ = 55132993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55149371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16877 + ... + 19877.

It is an arithmetic number, because the mean of its divisors is an integer number (3890592).

Almost surely, 2^55149377 is an apocalyptic number.

It is an amenable number.

55149377 is a deficient number, since it is larger than the sum of its proper divisors (7100095).

55149377 is a wasteful number, since it uses less digits than its factorization.

55149377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088.

The product of its digits is 132300, while the sum is 41.

The square root of 55149377 is about 7426.2626535829. The cubic root of 55149377 is about 380.6392219056.

The spelling of 55149377 in words is "fifty-five million, one hundred forty-nine thousand, three hundred seventy-seven".