625390702140 has 24 divisors (see below), whose sum is σ = 1751093966160. Its totient is φ = 166770853888.

The previous prime is 625390702121. The next prime is 625390702163. The reversal of 625390702140 is 41207093526.

It is a super-2 number, since 2×625390702140² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211589125 + ... + 5211589244.

It is an arithmetic number, because the mean of its divisors is an integer number (72962248590).

Almost surely, 2^625390702140 is an apocalyptic number.

625390702140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625390702140 is an abundant number, since it is smaller than the sum of its proper divisors (1125703264020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625390702140 is a wasteful number, since it uses less digits than its factorization.

625390702140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423178381 (or 10423178379 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

Adding to 625390702140 its reverse (41207093526), we get a palindrome (666597795666).

The spelling of 625390702140 in words is "six hundred twenty-five billion, three hundred ninety million, seven hundred two thousand, one hundred forty".