625126400 has 66 divisors (see below), whose sum is σ = 1549619940. Its totient is φ = 250040320.

The previous prime is 625126379. The next prime is 625126409. The reversal of 625126400 is 4621526.

It is a self number, because there is not a number n which added to its sum of digits gives 625126400.

It is not an unprimeable number, because it can be changed into a prime (625126409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13391 + ... + 37809.

It is an arithmetic number, because the mean of its divisors is an integer number (23479090).

Almost surely, 2^625126400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625126400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774809970).

625126400 is an abundant number, since it is smaller than the sum of its proper divisors (924493540).

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

625126400 is a wasteful number, since it uses less digits than its factorization.

625126400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449 (or 24426 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 625126400 is about 25002.5278721972. The cubic root of 625126400 is about 855.0456070425.

Adding to 625126400 its reverse (4621526), we get a palindrome (629747926).

It can be divided in two parts, 625126 and 400, that added together give a palindrome (625526).

The spelling of 625126400 in words is "six hundred twenty-five million, one hundred twenty-six thousand, four hundred".