55415247801 has 4 divisors (see below), whose sum is σ = 73886997072. Its totient is φ = 36943498532.

The previous prime is 55415247793. The next prime is 55415247827. The reversal of 55415247801 is 10874251455.

It is a happy number.

55415247801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55415247801 - 2³ = 55415247793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55415247841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9235874631 + ... + 9235874636.

It is an arithmetic number, because the mean of its divisors is an integer number (18471749268).

Almost surely, 2^55415247801 is an apocalyptic number.

It is an amenable number.

55415247801 is a deficient number, since it is larger than the sum of its proper divisors (18471749271).

55415247801 is a wasteful number, since it uses less digits than its factorization.

55415247801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471749270.

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 55415247801 in words is "fifty-five billion, four hundred fifteen million, two hundred forty-seven thousand, eight hundred one".