55562155 has 16 divisors (see below), whose sum is σ = 73932768. Its totient is φ = 39744000.

The previous prime is 55562083. The next prime is 55562161. The reversal of 55562155 is 55126555.

It is not a de Polignac number, because 55562155 - 2¹³ = 55553963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55562155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4926 + ... + 11635.

It is an arithmetic number, because the mean of its divisors is an integer number (4620798).

Almost surely, 2^55562155 is an apocalyptic number.

55562155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55562155 is a deficient number, since it is larger than the sum of its proper divisors (18370613).

55562155 is a wasteful number, since it uses less digits than its factorization.

55562155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16638.

The product of its digits is 37500, while the sum is 34.

The square root of 55562155 is about 7454.0026160446. The cubic root of 55562155 is about 381.5865225423.

Subtracting from 55562155 its reverse (55126555), we obtain a square (435600 = 660²).

The spelling of 55562155 in words is "fifty-five million, five hundred sixty-two thousand, one hundred fifty-five".