55260861 has 8 divisors (see below), whose sum is σ = 75249024. Its totient is φ = 36056640.

The previous prime is 55260851. The next prime is 55260889. The reversal of 55260861 is 16806255.

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

It is not a de Polignac number, because 55260861 - 2²³ = 46872253 is a prime.

It is a super-2 number, since 2×55260861² = 6107525516922642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55260811) 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, 195820 + ... + 196101.

It is an arithmetic number, because the mean of its divisors is an integer number (9406128).

Almost surely, 2^55260861 is an apocalyptic number.

It is an amenable number.

55260861 is a deficient number, since it is larger than the sum of its proper divisors (19988163).

55260861 is a wasteful number, since it uses less digits than its factorization.

55260861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391971.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 55260861 is about 7433.7649276796. The cubic root of 55260861 is about 380.8955355956.

The spelling of 55260861 in words is "fifty-five million, two hundred sixty thousand, eight hundred sixty-one".