2545120031 has 16 divisors (see below), whose sum is σ = 2742812928. Its totient is φ = 2353008000.

The previous prime is 2545120021. The next prime is 2545120033. The reversal of 2545120031 is 1300215452.

It is a cyclic number.

It is not a de Polignac number, because 2545120031 - 2²⁶ = 2478011167 is a prime.

It is a super-2 number, since 2×2545120031² = 12955271944394881922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2545119979 and 2545120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545120033) 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, 337856 + ... + 345306.

It is an arithmetic number, because the mean of its divisors is an integer number (171425808).

Almost surely, 2^2545120031 is an apocalyptic number.

2545120031 is a deficient number, since it is larger than the sum of its proper divisors (197692897).

2545120031 is a wasteful number, since it uses less digits than its factorization.

2545120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2545120031 is about 50449.1826593851. The cubic root of 2545120031 is about 1365.3251482486.

Adding to 2545120031 its reverse (1300215452), we get a palindrome (3845335483).

The spelling of 2545120031 in words is "two billion, five hundred forty-five million, one hundred twenty thousand, thirty-one".