2545658254957 has 2 divisors, whose sum is σ = 2545658254958. Its totient is φ = 2545658254956.

The previous prime is 2545658254933. The next prime is 2545658254991. The reversal of 2545658254957 is 7594528565452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1923785644036 + 621872610921 = 1387006^2 + 788589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545658254957 - 2⁷ = 2545658254829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545658254892 and 2545658254901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545658254907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272829127478 + 1272829127479.

It is an arithmetic number, because the mean of its divisors is an integer number (1272829127479).

Almost surely, 2^{2545658254957} is an apocalyptic number.

It is an amenable number.

2545658254957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545658254957 is an equidigital number, since it uses as much as digits as its factorization.

2545658254957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800000, while the sum is 67.

The spelling of 2545658254957 in words is "two trillion, five hundred forty-five billion, six hundred fifty-eight million, two hundred fifty-four thousand, nine hundred fifty-seven".