7700420255 has 8 divisors (see below), whose sum is σ = 10080550224. Its totient is φ = 5600305600.

The previous prime is 7700420251. The next prime is 7700420269. The reversal of 7700420255 is 5520240077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7700420255 - 2² = 7700420251 is a prime.

It is a super-2 number, since 2×7700420255² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7700420251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70003766 + ... + 70003875.

It is an arithmetic number, because the mean of its divisors is an integer number (1260068778).

Almost surely, 2^7700420255 is an apocalyptic number.

7700420255 is a deficient number, since it is larger than the sum of its proper divisors (2380129969).

7700420255 is a wasteful number, since it uses less digits than its factorization.

7700420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140007657.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 7700420255 is about 87752.0384663513. The cubic root of 7700420255 is about 1974.7167466449.

The spelling of 7700420255 in words is "seven billion, seven hundred million, four hundred twenty thousand, two hundred fifty-five".