245542011 has 64 divisors (see below), whose sum is σ = 399168000. Its totient is φ = 132295680.

The previous prime is 245542007. The next prime is 245542051. The reversal of 245542011 is 110245542.

It is not a de Polignac number, because 245542011 - 2² = 245542007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245542051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2252625 + ... + 2252733.

It is an arithmetic number, because the mean of its divisors is an integer number (6237000).

Almost surely, 2^245542011 is an apocalyptic number.

245542011 is a deficient number, since it is larger than the sum of its proper divisors (153625989).

245542011 is a wasteful number, since it uses less digits than its factorization.

245542011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 245542011 is about 15669.7801835252. The cubic root of 245542011 is about 626.1935685662.

Adding to 245542011 its reverse (110245542), we get a palindrome (355787553).

It can be divided in two parts, 24554 and 2011, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 245542011 in words is "two hundred forty-five million, five hundred forty-two thousand, eleven".