55121037 has 8 divisors (see below), whose sum is σ = 73644000. Its totient is φ = 36672720.

The previous prime is 55121029. The next prime is 55121051. The reversal of 55121037 is 73012155.

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

It is not a de Polignac number, because 55121037 - 2³ = 55121029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55120998 and 55121016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55121057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16914 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (9205500).

Almost surely, 2^55121037 is an apocalyptic number.

It is an amenable number.

55121037 is a deficient number, since it is larger than the sum of its proper divisors (18522963).

55121037 is a wasteful number, since it uses less digits than its factorization.

55121037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37323.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 55121037 is about 7424.3543153597. The cubic root of 55121037 is about 380.5740101453.

The spelling of 55121037 in words is "fifty-five million, one hundred twenty-one thousand, thirty-seven".