245155533401 has 4 divisors (see below), whose sum is σ = 247682910132. Its totient is φ = 242628156672.

The previous prime is 245155533383. The next prime is 245155533419. The reversal of 245155533401 is 104335551542.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (245155533383) and next prime (245155533419).

It can be written as a sum of positive squares in 2 ways, for example, as 147724153801 + 97431379600 = 384349^2 + 312140^2 .

It is a cyclic number.

It is not a de Polignac number, because 245155533401 - 2¹⁴ = 245155517017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245155833401) 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, 1263688220 + ... + 1263688413.

It is an arithmetic number, because the mean of its divisors is an integer number (61920727533).

Almost surely, 2^245155533401 is an apocalyptic number.

It is an amenable number.

245155533401 is a deficient number, since it is larger than the sum of its proper divisors (2527376731).

245155533401 is an equidigital number, since it uses as much as digits as its factorization.

245155533401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527376730.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 245155533401 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred thirty-three thousand, four hundred one".