2545401547 has 4 divisors (see below), whose sum is σ = 2741201680. Its totient is φ = 2349601416.

The previous prime is 2545401539. The next prime is 2545401553. The reversal of 2545401547 is 7451045452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2545401547 - 2³ = 2545401539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545471547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97900047 + ... + 97900072.

It is an arithmetic number, because the mean of its divisors is an integer number (685300420).

Almost surely, 2^2545401547 is an apocalyptic number.

2545401547 is a deficient number, since it is larger than the sum of its proper divisors (195800133).

2545401547 is a wasteful number, since it uses less digits than its factorization.

2545401547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195800132.

The product of its (nonzero) digits is 112000, while the sum is 37.

The square root of 2545401547 is about 50451.9726769925. The cubic root of 2545401547 is about 1365.3754859798.

Adding to 2545401547 its reverse (7451045452), we get a palindrome (9996446999).

The spelling of 2545401547 in words is "two billion, five hundred forty-five million, four hundred one thousand, five hundred forty-seven".