55154212250 has 64 divisors (see below), whose sum is σ = 104541840000. Its totient is φ = 21786019200.

The previous prime is 55154212213. The next prime is 55154212277. The reversal of 55154212250 is 5221245155.

It is a happy number.

It is a super-3 number, since 3×55154212250³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32461901 + ... + 32463599.

It is an arithmetic number, because the mean of its divisors is an integer number (1633466250).

Almost surely, 2^55154212250 is an apocalyptic number.

55154212250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55154212250 is a deficient number, since it is larger than the sum of its proper divisors (49387627750).

55154212250 is a wasteful number, since it uses less digits than its factorization.

55154212250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 55154212250 in words is "fifty-five billion, one hundred fifty-four million, two hundred twelve thousand, two hundred fifty".