2015420253 has 32 divisors (see below), whose sum is σ = 3352707072. Its totient is φ = 1046222400.

The previous prime is 2015420237. The next prime is 2015420263. The reversal of 2015420253 is 3520245102.

It is not a de Polignac number, because 2015420253 - 2⁴ = 2015420237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015420203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485575 + ... + 489707.

It is an arithmetic number, because the mean of its divisors is an integer number (104772096).

Almost surely, 2^2015420253 is an apocalyptic number.

It is an amenable number.

2015420253 is a deficient number, since it is larger than the sum of its proper divisors (1337286819).

2015420253 is a wasteful number, since it uses less digits than its factorization.

2015420253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2015420253 is about 44893.4321811109. The cubic root of 2015420253 is about 1263.1508136581.

Adding to 2015420253 its reverse (3520245102), we get a palindrome (5535665355).

The spelling of 2015420253 in words is "two billion, fifteen million, four hundred twenty thousand, two hundred fifty-three".