2545474391 has 8 divisors (see below), whose sum is σ = 2635197600. Its totient is φ = 2455881120.

The previous prime is 2545474357. The next prime is 2545474409. The reversal of 2545474391 is 1934745452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2545474391 - 2¹⁰ = 2545473367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545474091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 71828.

It is an arithmetic number, because the mean of its divisors is an integer number (329399700).

Almost surely, 2^2545474391 is an apocalyptic number.

2545474391 is a deficient number, since it is larger than the sum of its proper divisors (89723209).

2545474391 is a wasteful number, since it uses less digits than its factorization.

2545474391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64969.

The product of its digits is 604800, while the sum is 44.

The square root of 2545474391 is about 50452.6945861170. The cubic root of 2545474391 is about 1365.3885105735.

The spelling of 2545474391 in words is "two billion, five hundred forty-five million, four hundred seventy-four thousand, three hundred ninety-one".