1249515696253 has 16 divisors (see below), whose sum is σ = 1466951376960. Its totient is φ = 1051578028800.

The previous prime is 1249515696251. The next prime is 1249515696271. The reversal of 1249515696253 is 3526965159421.

It is a cyclic number.

It is not a de Polignac number, because 1249515696253 - 2¹ = 1249515696251 is a prime.

It is a super-4 number, since 4×1249515696253⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249515696251) 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, 54758283 + ... + 54781096.

It is an arithmetic number, because the mean of its divisors is an integer number (91684461060).

Almost surely, 2^{1249515696253} is an apocalyptic number.

It is an amenable number.

1249515696253 is a deficient number, since it is larger than the sum of its proper divisors (217435680707).

1249515696253 is a wasteful number, since it uses less digits than its factorization.

1249515696253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109539468.

The product of its digits is 17496000, while the sum is 58.

The spelling of 1249515696253 in words is "one trillion, two hundred forty-nine billion, five hundred fifteen million, six hundred ninety-six thousand, two hundred fifty-three".