55911955 has 8 divisors (see below), whose sum is σ = 73193904. Its totient is φ = 40663200.

The previous prime is 55911943. The next prime is 55911967.

55911955 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (55911943) and next prime (55911967).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55911955 - 2¹³ = 55903763 is a prime.

It is a super-2 number, since 2×55911955² = 6252293423844050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508236 + ... + 508345.

It is an arithmetic number, because the mean of its divisors is an integer number (9149238).

Almost surely, 2^55911955 is an apocalyptic number.

55911955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55911955 is a deficient number, since it is larger than the sum of its proper divisors (17281949).

55911955 is a wasteful number, since it uses less digits than its factorization.

55911955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016597.

The product of its digits is 50625, while the sum is 40.

The square root of 55911955 is about 7477.4297054536. The cubic root of 55911955 is about 382.3856265897.

The spelling of 55911955 in words is "fifty-five million, nine hundred eleven thousand, nine hundred fifty-five".