55215150240 has 96 divisors (see below), whose sum is σ = 176523762240. Its totient is φ = 14504269824.

The previous prime is 55215150167. The next prime is 55215150269. The reversal of 55215150240 is 4205151255.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55215150198 and 55215150207.

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, 826285 + ... + 890604.

It is an arithmetic number, because the mean of its divisors is an integer number (1838789190).

Almost surely, 2^55215150240 is an apocalyptic number.

It is an amenable number.

55215150240 is an abundant number, since it is smaller than the sum of its proper divisors (121308612000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55215150240 is a wasteful number, since it uses less digits than its factorization.

55215150240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716974 (or 1716966 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 55215150240 in words is "fifty-five billion, two hundred fifteen million, one hundred fifty thousand, two hundred forty".