2056723550 has 72 divisors (see below), whose sum is σ = 4479260184. Its totient is φ = 700539840.

The previous prime is 2056723531. The next prime is 2056723553. The reversal of 2056723550 is 553276502.

It is a super-3 number, since 3×2056723550³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056723550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056723553) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 381977 + ... + 387323.

It is an arithmetic number, because the mean of its divisors is an integer number (62211947).

Almost surely, 2^2056723550 is an apocalyptic number.

2056723550 is an abundant number, since it is smaller than the sum of its proper divisors (2422536634).

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

2056723550 is a wasteful number, since it uses less digits than its factorization.

2056723550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530 (or 5518 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 2056723550 is about 45351.1140987738. The cubic root of 2056723550 is about 1271.7213828639.

The spelling of 2056723550 in words is "two billion, fifty-six million, seven hundred twenty-three thousand, five hundred fifty".