55377501 has 16 divisors (see below), whose sum is σ = 78850560. Its totient is φ = 34493760.

The previous prime is 55377481. The next prime is 55377503. The reversal of 55377501 is 10577355.

It is not a de Polignac number, because 55377501 - 2¹³ = 55369309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55377503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7570 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (4928160).

Almost surely, 2^55377501 is an apocalyptic number.

It is an amenable number.

55377501 is a deficient number, since it is larger than the sum of its proper divisors (23473059).

55377501 is a wasteful number, since it uses less digits than its factorization.

55377501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20596.

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 55377501 is about 7441.6060766477. The cubic root of 55377501 is about 381.1633347396.

The spelling of 55377501 in words is "fifty-five million, three hundred seventy-seven thousand, five hundred one".