2520145155 has 128 divisors (see below), whose sum is σ = 4751695872. Its totient is φ = 1128960000.

The previous prime is 2520145091. The next prime is 2520145189. The reversal of 2520145155 is 5515410252.

It is not a de Polignac number, because 2520145155 - 2⁶ = 2520145091 is a prime.

It is a super-2 number, since 2×2520145155² = 12702263204539948050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12792517 + ... + 12792713.

It is an arithmetic number, because the mean of its divisors is an integer number (37122624).

Almost surely, 2^2520145155 is an apocalyptic number.

2520145155 is a deficient number, since it is larger than the sum of its proper divisors (2231550717).

2520145155 is a wasteful number, since it uses less digits than its factorization.

2520145155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2520145155 is about 50201.0473496321. The cubic root of 2520145155 is about 1360.8445509427.

The spelling of 2520145155 in words is "two billion, five hundred twenty million, one hundred forty-five thousand, one hundred fifty-five".