245547255047 has 4 divisors (see below), whose sum is σ = 245668395336. Its totient is φ = 245426114760.

The previous prime is 245547254957. The next prime is 245547255059. The reversal of 245547255047 is 740552745542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740552745542 = 2 ⋅370276372771.

It is a cyclic number.

It is not a de Polignac number, because 245547255047 - 2¹² = 245547250951 is a prime.

It is a super-2 number, since 2×245547255047² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245547254986 and 245547255004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245547255347) 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, 60567104 + ... + 60571157.

It is an arithmetic number, because the mean of its divisors is an integer number (61417098834).

Almost surely, 2^245547255047 is an apocalyptic number.

245547255047 is a deficient number, since it is larger than the sum of its proper divisors (121140289).

245547255047 is a wasteful number, since it uses less digits than its factorization.

245547255047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121140288.

The product of its (nonzero) digits is 7840000, while the sum is 50.

The spelling of 245547255047 in words is "two hundred forty-five billion, five hundred forty-seven million, two hundred fifty-five thousand, forty-seven".