102505051005 has 32 divisors (see below), whose sum is σ = 187709196288. Its totient is φ = 46791604800.

The previous prime is 102505051001. The next prime is 102505051031. The reversal of 102505051005 is 500150505201.

It is not a de Polignac number, because 102505051005 - 2² = 102505051001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102505051001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633841 + ... + 778950.

It is an arithmetic number, because the mean of its divisors is an integer number (5865912384).

Almost surely, 2^102505051005 is an apocalyptic number.

102505051005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102505051005 is a deficient number, since it is larger than the sum of its proper divisors (85204145283).

102505051005 is a wasteful number, since it uses less digits than its factorization.

102505051005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413497.

The product of its (nonzero) digits is 1250, while the sum is 24.

Adding to 102505051005 its reverse (500150505201), we get a palindrome (602655556206).

The spelling of 102505051005 in words is "one hundred two billion, five hundred five million, fifty-one thousand, five".