245155523550 has 288 divisors, whose sum is σ = 753681591648. Its totient is φ = 52399226880.

The previous prime is 245155523527. The next prime is 245155523573. The reversal of 245155523550 is 55325551542.

It is an interprime number because it is at equal distance from previous prime (245155523527) and next prime (245155523573).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19610902 + ... + 19623398.

It is an arithmetic number, because the mean of its divisors is an integer number (2616949971).

Almost surely, 2^245155523550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245155523550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376840795824).

245155523550 is an abundant number, since it is smaller than the sum of its proper divisors (508526068098).

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

245155523550 is a wasteful number, since it uses less digits than its factorization.

245155523550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700 (or 12688 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 245155523550 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred twenty-three thousand, five hundred fifty".