55220025265245 has 16 divisors (see below), whose sum is σ = 98168933805120. Its totient is φ = 29450680141392.

The previous prime is 55220025265231. The next prime is 55220025265277. The reversal of 55220025265245 is 54256252002255.

55220025265245 is a `hidden beast` number, since 5 + 52 + 20 + 0 + 2 + 52 + 6 + 524 + 5 = 666.

It is not a de Polignac number, because 55220025265245 - 2¹¹ = 55220025263197 is a prime.

It is a super-2 number, since 2×55220025265245² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55220025265245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204518611959 + ... + 204518612228.

It is an arithmetic number, because the mean of its divisors is an integer number (6135558362820).

Almost surely, 2^{55220025265245} is an apocalyptic number.

It is an amenable number.

55220025265245 is a deficient number, since it is larger than the sum of its proper divisors (42948908539875).

55220025265245 is a wasteful number, since it uses less digits than its factorization.

55220025265245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409037224201 (or 409037224195 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

The spelling of 55220025265245 in words is "fifty-five trillion, two hundred twenty billion, twenty-five million, two hundred sixty-five thousand, two hundred forty-five".