245551392 has 96 divisors (see below), whose sum is σ = 728481600. Its totient is φ = 80446464.

The previous prime is 245551387. The next prime is 245551393. The reversal of 245551392 is 293155542.

It is a happy number.

245551392 is a `hidden beast` number, since 2 + 4 + 55 + 513 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×245551392² = 120590972226275328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (245551393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48568 + ... + 53384.

It is an arithmetic number, because the mean of its divisors is an integer number (7588350).

Almost surely, 2^245551392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245551392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364240800).

245551392 is an abundant number, since it is smaller than the sum of its proper divisors (482930208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245551392 is a wasteful number, since it uses less digits than its factorization.

245551392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895 (or 4881 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 245551392 is about 15670.0795147951. The cubic root of 245551392 is about 626.2015430971.

The spelling of 245551392 in words is "two hundred forty-five million, five hundred fifty-one thousand, three hundred ninety-two".