2545620924 has 192 divisors, whose sum is σ = 7702216704. Its totient is φ = 635040000.

The previous prime is 2545620901. The next prime is 2545620943. The reversal of 2545620924 is 4290265452.

It is a super-2 number, since 2×2545620924² = 12960371777413227552, which 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 63 ways as a sum of consecutive naturals, for example, 5184319 + ... + 5184809.

It is an arithmetic number, because the mean of its divisors is an integer number (40115712).

Almost surely, 2^2545620924 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 2545620924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3851108352).

2545620924 is an abundant number, since it is smaller than the sum of its proper divisors (5156595780).

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

2545620924 is a wasteful number, since it uses less digits than its factorization.

2545620924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 2545620924 is about 50454.1467473190. The cubic root of 2545620924 is about 1365.4147100954.

It can be divided in two parts, 25456209 and 24, that multiplied together give a palindrome (610949016).

The spelling of 2545620924 in words is "two billion, five hundred forty-five million, six hundred twenty thousand, nine hundred twenty-four".