2545450251 has 16 divisors (see below), whose sum is σ = 3405947904. Its totient is φ = 1690972704.

The previous prime is 2545450249. The next prime is 2545450253. The reversal of 2545450251 is 1520545452.

It is an interprime number because it is at equal distance from previous prime (2545450249) and next prime (2545450253).

It is not a de Polignac number, because 2545450251 - 2¹ = 2545450249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545450253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1333840 + ... + 1335746.

It is an arithmetic number, because the mean of its divisors is an integer number (212871744).

Almost surely, 2^2545450251 is an apocalyptic number.

2545450251 is a deficient number, since it is larger than the sum of its proper divisors (860497653).

2545450251 is a wasteful number, since it uses less digits than its factorization.

2545450251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 2545450251 is about 50452.4553515486. The cubic root of 2545450251 is about 1365.3841943404.

The spelling of 2545450251 in words is "two billion, five hundred forty-five million, four hundred fifty thousand, two hundred fifty-one".