155557225013 has 8 divisors (see below), whose sum is σ = 156261231840. Its totient is φ = 154853382960.

The previous prime is 155557224971. The next prime is 155557225067. The reversal of 155557225013 is 310522755551.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 155557225013 - 2¹⁶ = 155557159477 is a prime.

It is a super-2 number, since 2×155557225013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155557225613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102198 + ... + 2174936.

It is an arithmetic number, because the mean of its divisors is an integer number (19532653980).

Almost surely, 2^155557225013 is an apocalyptic number.

It is an amenable number.

155557225013 is a deficient number, since it is larger than the sum of its proper divisors (704006827).

155557225013 is an equidigital number, since it uses as much as digits as its factorization.

155557225013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82387.

The product of its (nonzero) digits is 262500, while the sum is 41.

The spelling of 155557225013 in words is "one hundred fifty-five billion, five hundred fifty-seven million, two hundred twenty-five thousand, thirteen".