55420152249 has 16 divisors (see below), whose sum is σ = 92127006720. Its totient is φ = 28789689360.

The previous prime is 55420152247. The next prime is 55420152313. The reversal of 55420152249 is 94225102455.

It is not a de Polignac number, because 55420152249 - 2¹ = 55420152247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55420152247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119956809 + ... + 119957270.

It is an arithmetic number, because the mean of its divisors is an integer number (5757937920).

Almost surely, 2^55420152249 is an apocalyptic number.

It is an amenable number.

55420152249 is a deficient number, since it is larger than the sum of its proper divisors (36706854471).

55420152249 is a wasteful number, since it uses less digits than its factorization.

55420152249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239914100.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 55420152249 in words is "fifty-five billion, four hundred twenty million, one hundred fifty-two thousand, two hundred forty-nine".