1253413251015 has 16 divisors (see below), whose sum is σ = 2092655167488. Its totient is φ = 639422411936.

The previous prime is 1253413250989. The next prime is 1253413251017. The reversal of 1253413251015 is 5101523143521.

It is not a de Polignac number, because 1253413251015 - 2¹² = 1253413246919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253413251017) 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, 1816540599 + ... + 1816541288.

It is an arithmetic number, because the mean of its divisors is an integer number (130790947968).

Almost surely, 2^{1253413251015} is an apocalyptic number.

1253413251015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253413251015 is a deficient number, since it is larger than the sum of its proper divisors (839241916473).

1253413251015 is a wasteful number, since it uses less digits than its factorization.

1253413251015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633081918.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 1253413251015 its reverse (5101523143521), we get a palindrome (6354936394536).

The spelling of 1253413251015 in words is "one trillion, two hundred fifty-three billion, four hundred thirteen million, two hundred fifty-one thousand, fifteen".