6253400820 has 24 divisors (see below), whose sum is σ = 17509522464. Its totient is φ = 1667573536.

The previous prime is 6253400809. The next prime is 6253400831. The reversal of 6253400820 is 280043526.

It is an interprime number because it is at equal distance from previous prime (6253400809) and next prime (6253400831).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52111614 + ... + 52111733.

It is an arithmetic number, because the mean of its divisors is an integer number (729563436).

Almost surely, 2^6253400820 is an apocalyptic number.

6253400820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6253400820 is an abundant number, since it is smaller than the sum of its proper divisors (11256121644).

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

6253400820 is a wasteful number, since it uses less digits than its factorization.

6253400820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104223359 (or 104223357 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 6253400820 is about 79078.4472533446. The cubic root of 6253400820 is about 1842.3497881539.

The spelling of 6253400820 in words is "six billion, two hundred fifty-three million, four hundred thousand, eight hundred twenty".