2551021452 has 60 divisors (see below), whose sum is σ = 7621577040. Its totient is φ = 728862624.

The previous prime is 2551021423. The next prime is 2551021457. The reversal of 2551021452 is 2541201552.

2551021452 is a `hidden beast` number, since 2 + 5 + 510 + 2 + 145 + 2 = 666.

2551021452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2551021457) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 560127 + ... + 564662.

It is an arithmetic number, because the mean of its divisors is an integer number (127026284).

Almost surely, 2^2551021452 is an apocalyptic number.

It is an amenable number.

2551021452 is an abundant number, since it is smaller than the sum of its proper divisors (5070555588).

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

2551021452 is a wasteful number, since it uses less digits than its factorization.

2551021452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124812 (or 1124801 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2551021452 is about 50507.6375610660. The cubic root of 2551021452 is about 1366.3796026328.

The spelling of 2551021452 in words is "two billion, five hundred fifty-one million, twenty-one thousand, four hundred fifty-two".