245551501 has 8 divisors (see below), whose sum is σ = 270890424. Its totient is φ = 221134080.

The previous prime is 245551489. The next prime is 245551507. The reversal of 245551501 is 105155542.

245551501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11492100 + 234059401 = 3390^2 + 15299^2 .

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 245551501 - 2¹⁵ = 245518733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245551501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245551507) 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, 229816 + ... + 230881.

It is an arithmetic number, because the mean of its divisors is an integer number (33861303).

Almost surely, 2^245551501 is an apocalyptic number.

It is an amenable number.

245551501 is a deficient number, since it is larger than the sum of its proper divisors (25338923).

245551501 is a wasteful number, since it uses less digits than its factorization.

245551501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460751.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 245551501 is about 15670.0829927604. The cubic root of 245551501 is about 626.2016357538.

It can be divided in two parts, 2455 and 51501, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 245551501 in words is "two hundred forty-five million, five hundred fifty-one thousand, five hundred one".